Stus-List Re: Fresh water pump dead?

[Dave S via CnC-List]

I.ve managed to keep mine healthy also, though if not used it can go off,
particularly in the hot water tank.
Based on his many years' experience, my Dad advised a beginning of season
flush (shock I guess)  through the tank, all pumps and fittings with  a
high concentration of bleach/water, then rinse/refill with clean water.   I
will add approx 1 tbsp or so of bleach to the full 113l tank if it's going
to sit.   (I wrote the exact amount on the tank.)the HW tank may start
to go off if I've not used the boat enough, in which case I drain and
repeat the process. Seems to work fine.  Have shared this with others
who've struggled to keep their water fresh with similar results.

When cruising (12 days max so far, always in midsummer heat)  I fill not
only the tank, but also several 1.5l water bottles.   I freeze those at
home and stack in the bottom of the fridge to the extent that space
permits.  I thaw these one at a time as they get used.cooking, coffee,
tooth-brushing etc is done with the tank water,  and drinking from cold
bottled water.   If I refill the tank mid-cruise, I also refill the
bottles.   If the boat hasn't been sitting idle for weeks I am comfortable
with the tank water though I'll likely get a filter at some point.

Dave 33-2

On Mon, 26 Sept 2022 at 18:39, David Risch via CnC-List <
cnc-list@cnc-list.com> wrote:

> Cleaned and shocked the tanks every year.  Its what we drank numerous
> times when Bermuda bound.  No ill effects from the water.
>
>
>
> We now live aboard and drink tank water twice filtered.
>
>
>
> Key is rotation.  Use it and fill it.
>
>
>
> However took four water tests – 1) unfiltered, filtered once, filtered
> twice and bottled water.  The results were the same.
>
>
>
>
>
>
>
> *From:* dwight veinot via CnC-List 
> *Sent:* Monday, September 26, 2022 2:36 PM
> *To:* Stus-List 
> *Cc:* dwight veinot 
> *Subject:* Stus-List Re: Fresh water pump dead?
>
>
>
> Are you brave enough to drink water from your fresh water tanks or even
> cook food with it?  Filter or not it's good for washing dishes and
> showering. Quality potable in those tanks; if I was dying of thirst. Maybe.
> Take the filter out. Be careful of where you take on water and chlorinate
>
>
>
> On Mon, Sep 26, 2022 at 12:59 PM David Knecht via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> I mostly solved the mystery of my fresh water pump and wanted to update
> the discussion.  I got another identical Jabsco pump from Defender to
> replace the new one that was not shutting off and I was able to test the
> new one without removing the previous new one.  It did exactly the same
> thing which made me convinced the problem was elsewhere.  The hint came
> when I realized that air was getting into the system because the water
> coming out of the tap had frequent air gaps in flow.  I knew the problem
> was in the inflow because the pressure that the pump generated was
> maintained in the outflow system for many days.  I did not think the
> problem was in the tank lines since they were not leaking water.  The
> manifold also seemed fine.  My suspicion then centered on the filter
> between the manifold and the pump.  I pulled that out of the line and the
> pump pressurized and shut off quickly.  I am still not sure where the
> filter housing was leaking air but there is no obvious seal between the
> housing and the base.  Unlike the pump, that filter design has changed
> radically in what came with the new pump, so I suspect I am not the first
> to have problems with it.  Dave
>
>
>
> S/V Aries
>
> 1990 C 34+
>
> New London, CT
>
>
>
>
> On Sep 9, 2022, at 2:52 PM, Korbey Hunt via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>
>
> I have had new pump pressure switch failure occur shortly after
> installation.
>
>
>
> Get Outlook for Android
> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Faka.ms%2FAAb9ysg=05%7C01%7C%7C88225c15e956465cc06c08da9fee0fd4%7C84df9e7fe9f640afb435%7C1%7C0%7C637998142060481162%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=US%2FB8LYF12PvB94XWZn4%2BEfHu7SMD%2FcCYyVjG59KcK0%3D=0>
> --
>
> *From:* Bill Coleman via CnC-List 
> *Sent:* Tuesday, September 6, 2022 12:06:47 PM
> *To:* Stus-List 
> *Cc:* Bill Coleman 
> *Subject:* Stus-List Re: Fresh water pump dead?
>
>
>
> And not to beat a dead horse, but as I mentioned B4, I had no luck with
> the t;ypical pumps available, and once I went with the Johnson, all my
> problems went away. Maybe they have a better designed check valve.
>
>
>
> Bill Coleman
>
>
>
> On Tue, Sep 6, 2022 at 3:07 PM 

Stus-List Re: Fresh water pump dead?

[David Risch via CnC-List]

Cleaned and shocked the tanks every year.  Its what we drank numerous times 
when Bermuda bound.  No ill effects from the water.

We now live aboard and drink tank water twice filtered.

Key is rotation.  Use it and fill it.

However took four water tests - 1) unfiltered, filtered once, filtered twice 
and bottled water.  The results were the same.



From: dwight veinot via CnC-List 
Sent: Monday, September 26, 2022 2:36 PM
To: Stus-List 
Cc: dwight veinot 
Subject: Stus-List Re: Fresh water pump dead?

Are you brave enough to drink water from your fresh water tanks or even cook 
food with it?  Filter or not it's good for washing dishes and showering. 
Quality potable in those tanks; if I was dying of thirst. Maybe. Take the 
filter out. Be careful of where you take on water and chlorinate

On Mon, Sep 26, 2022 at 12:59 PM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
I mostly solved the mystery of my fresh water pump and wanted to update the 
discussion.  I got another identical Jabsco pump from Defender to replace the 
new one that was not shutting off and I was able to test the new one without 
removing the previous new one.  It did exactly the same thing which made me 
convinced the problem was elsewhere.  The hint came when I realized that air 
was getting into the system because the water coming out of the tap had 
frequent air gaps in flow.  I knew the problem was in the inflow because the 
pressure that the pump generated was maintained in the outflow system for many 
days.  I did not think the problem was in the tank lines since they were not 
leaking water.  The manifold also seemed fine.  My suspicion then centered on 
the filter between the manifold and the pump.  I pulled that out of the line 
and the pump pressurized and shut off quickly.  I am still not sure where the 
filter housing was leaking air but there is no obvious seal between the housing 
and the base.  Unlike the pump, that filter design has changed radically in 
what came with the new pump, so I suspect I am not the first to have problems 
with it.  Dave

S/V Aries
1990 C 34+
New London, CT

[cid:image001.png@01D8D1D6.B882B550]


On Sep 9, 2022, at 2:52 PM, Korbey Hunt via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:

I have had new pump pressure switch failure occur shortly after installation.

Get Outlook for 
Android<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Faka.ms%2FAAb9ysg=05%7C01%7C%7C88225c15e956465cc06c08da9fee0fd4%7C84df9e7fe9f640afb435%7C1%7C0%7C637998142060481162%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=US%2FB8LYF12PvB94XWZn4%2BEfHu7SMD%2FcCYyVjG59KcK0%3D=0>

From: Bill Coleman via CnC-List 
mailto:cnc-list@cnc-list.com>>
Sent: Tuesday, September 6, 2022 12:06:47 PM
To: Stus-List mailto:cnc-list@cnc-list.com>>
Cc: Bill Coleman mailto:colt...@gmail.com>>
Subject: Stus-List Re: Fresh water pump dead?

And not to beat a dead horse, but as I mentioned B4, I had no luck with the 
t;ypical pumps available, and once I went with the Johnson, all my problems 
went away. Maybe they have a better designed check valve.

Bill Coleman

On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Good thoughts.  I can see in my tanks and there is not any significant amount 
of sludge.  I also have a strainer that was already in the line just before the 
pump.  The pump came with one, but I elected to leave the existing one in 
place.  I cleaned the filter and there was not much there.   Dave

David Knecht
Rear Commodore
Thames Yacht Club
New London, CT




On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:

If you have that much sludge, you may want to consider an in-line strainer.  I 
have one between my bilgewater intake and my diaphragm bilge pump, and I know 
I've saved the pump from a lot of crud.  My strainer is simple and looks like 
the product at the link below, but as I recall it was made by a company with a 
marine presence (like Forespar or Surflow).  Very easy to install and clean 
periodically.

1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb In-Line 
Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI RV Camper 
Marine Boat Lawn (1): Amazon.com: Industrial & 
Scientific<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.amazon.com%2FStrainer-Twist-Sprayer-Filter-Camper%2Fdp%2FB094NQNVMF%2Fref%3Dsr_1_6%3Fkeywords%3Dwater%2Bstrainer%2Bmarine%26qid%3D1662487937%26sr%3D8-6=05%7C01%7C%7C88225c15e956465cc06c08da9fee0fd4%7C84df9e7fe9f640afb435%7C1%7C0%7C637998142060481162%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=%2BXtHEmjRxl%2BD7HzY958vJTdxYVNvE3h3JiJk45Ev2jg%3D=0>

From: Bill Coleman via CnC-List 
mailto:cnc-lis

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

This is not that kind of filter.  It is a wire screen for large particulates to 
protect the pump.  But in answer- I don’t drink or cook with the water from the 
tanks. Just used for washing and showering.  I gave up on trying to maintain 
tank water many years ago and keep liter bottles of water in the sink that I 
refill from home.  Our usage is not high.  I won’t even use the Yacht Club 
water because there is a large cluster of Parkinson’s Disease at the club and 
they are all people who grew up in New London.  No idea if it is the water, but 
not worth the risk.  Dave

S/V Aries
1990 C 34+
New London, CT



> On Sep 26, 2022, at 2:36 PM, dwight veinot via CnC-List 
>  wrote:
> 
> Are you brave enough to drink water from your fresh water tanks or even cook 
> food with it?  Filter or not it's good for washing dishes and showering. 
> Quality potable in those tanks; if I was dying of thirst. Maybe. Take the 
> filter out. Be careful of where you take on water and chlorinate 
> 
> On Mon, Sep 26, 2022 at 12:59 PM David Knecht via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
> I mostly solved the mystery of my fresh water pump and wanted to update the 
> discussion.  I got another identical Jabsco pump from Defender to replace the 
> new one that was not shutting off and I was able to test the new one without 
> removing the previous new one.  It did exactly the same thing which made me 
> convinced the problem was elsewhere.  The hint came when I realized that air 
> was getting into the system because the water coming out of the tap had 
> frequent air gaps in flow.  I knew the problem was in the inflow because the 
> pressure that the pump generated was maintained in the outflow system for 
> many days.  I did not think the problem was in the tank lines since they were 
> not leaking water.  The manifold also seemed fine.  My suspicion then 
> centered on the filter between the manifold and the pump.  I pulled that out 
> of the line and the pump pressurized and shut off quickly.  I am still not 
> sure where the filter housing was leaking air but there is no obvious seal 
> between the housing and the base.  Unlike the pump, that filter design has 
> changed radically in what came with the new pump, so I suspect I am not the 
> first to have problems with it.  Dave
> 
> S/V Aries
> 1990 C 34+
> New London, CT
> 
> 
> 
>> On Sep 9, 2022, at 2:52 PM, Korbey Hunt via CnC-List > <mailto:cnc-list@cnc-list.com>> wrote:
>> 
>> I have had new pump pressure switch failure occur shortly after installation.
>> 
>> Get Outlook for Android <https://aka.ms/AAb9ysg>
>> From: Bill Coleman via CnC-List > <mailto:cnc-list@cnc-list.com>>
>> Sent: Tuesday, September 6, 2022 12:06:47 PM
>> To: Stus-List mailto:cnc-list@cnc-list.com>>
>> Cc: Bill Coleman mailto:colt...@gmail.com>>
>> Subject: Stus-List Re: Fresh water pump dead?
>>  
>> And not to beat a dead horse, but as I mentioned B4, I had no luck with the 
>> t;ypical pumps available, and once I went with the Johnson, all my problems 
>> went away. Maybe they have a better designed check valve.
>> 
>> Bill Coleman
>> 
>> On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List 
>> mailto:cnc-list@cnc-list.com>> wrote:
>> Good thoughts.  I can see in my tanks and there is not any significant 
>> amount of sludge.  I also have a strainer that was already in the line just 
>> before the pump.  The pump came with one, but I elected to leave the 
>> existing one in place.  I cleaned the filter and there was not much there.   
>> Dave
>> 
>> David Knecht
>> Rear Commodore
>> Thames Yacht Club
>> New London, CT
>> 
>> 
>> 
>>> On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List >> <mailto:cnc-list@cnc-list.com>> wrote:
>>> 
>>> If you have that much sludge, you may want to consider an in-line strainer. 
>>>  I have one between my bilgewater intake and my diaphragm bilge pump, and I 
>>> know I’ve saved the pump from a lot of crud.  My strainer is simple and 
>>> looks like the product at the link below, but as I recall it was made by a 
>>> company with a marine presence (like Forespar or Surflow).  Very easy to 
>>> install and clean periodically.
>>>  
>>> 1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb 
>>> In-Line Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI 
>>> RV Camper Marine Boat Lawn (1): Amazon.com: Industrial & Scientific 
>>> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.amazon.com%2FStrainer-Twist-Sprayer-

Stus-List Re: Fresh water pump dead?

[dwight veinot via CnC-List]

Are you brave enough to drink water from your fresh water tanks or even
cook food with it?  Filter or not it's good for washing dishes and
showering. Quality potable in those tanks; if I was dying of thirst. Maybe.
Take the filter out. Be careful of where you take on water and chlorinate

On Mon, Sep 26, 2022 at 12:59 PM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> I mostly solved the mystery of my fresh water pump and wanted to update
> the discussion.  I got another identical Jabsco pump from Defender to
> replace the new one that was not shutting off and I was able to test the
> new one without removing the previous new one.  It did exactly the same
> thing which made me convinced the problem was elsewhere.  The hint came
> when I realized that air was getting into the system because the water
> coming out of the tap had frequent air gaps in flow.  I knew the problem
> was in the inflow because the pressure that the pump generated was
> maintained in the outflow system for many days.  I did not think the
> problem was in the tank lines since they were not leaking water.  The
> manifold also seemed fine.  My suspicion then centered on the filter
> between the manifold and the pump.  I pulled that out of the line and the
> pump pressurized and shut off quickly.  I am still not sure where the
> filter housing was leaking air but there is no obvious seal between the
> housing and the base.  Unlike the pump, that filter design has changed
> radically in what came with the new pump, so I suspect I am not the first
> to have problems with it.  Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
> On Sep 9, 2022, at 2:52 PM, Korbey Hunt via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> I have had new pump pressure switch failure occur shortly after
> installation.
>
> Get Outlook for Android <https://aka.ms/AAb9ysg>
> --
> *From:* Bill Coleman via CnC-List 
> *Sent:* Tuesday, September 6, 2022 12:06:47 PM
> *To:* Stus-List 
> *Cc:* Bill Coleman 
> *Subject:* Stus-List Re: Fresh water pump dead?
>
> And not to beat a dead horse, but as I mentioned B4, I had no luck with
> the t;ypical pumps available, and once I went with the Johnson, all my
> problems went away. Maybe they have a better designed check valve.
>
> Bill Coleman
>
> On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> Good thoughts.  I can see in my tanks and there is not any significant
> amount of sludge.  I also have a strainer that was already in the line just
> before the pump.  The pump came with one, but I elected to leave the
> existing one in place.  I cleaned the filter and there was not much there.
>   Dave
>
> David Knecht
> Rear Commodore
> Thames Yacht Club
> New London, CT
>
>
>
> On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List 
> wrote:
>
> If you have that much sludge, you may want to consider an in-line
> strainer.  I have one between my bilgewater intake and my diaphragm bilge
> pump, and I know I’ve saved the pump from a lot of crud.  My strainer is
> simple and looks like the product at the link below, but as I recall it was
> made by a company with a marine presence (like Forespar or Surflow).  Very
> easy to install and clean periodically.
>
> 1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb
> In-Line Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI
> RV Camper Marine Boat Lawn (1): Amazon.com: Industrial & Scientific
> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.amazon.com%2FStrainer-Twist-Sprayer-Filter-Camper%2Fdp%2FB094NQNVMF%2Fref%3Dsr_1_6%3Fkeywords%3Dwater%2Bstrainer%2Bmarine%26qid%3D1662487937%26sr%3D8-6=05%7C01%7C%7Cbaa3cbdbc7034bec4ca108da90437baf%7C84df9e7fe9f640afb435%7C1%7C0%7C637980916769956902%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=YW1oO0aQP2GFx8FeHiKf%2BCIc%2FY8nbDJqDozcsV%2BvIDQ%3D=0>
>
> *From:* Bill Coleman via CnC-List 
> *Sent:* Tuesday, September 06, 2022 1:52 PM
> *To:* Stus-List 
> *Cc:* Bill Coleman 
> *Subject:* Stus-List Re: Fresh water pump dead?
>
> Maybe you have a lot of sludge in your tank, I often put a hose on the far
> end of my water system and run a couple tanks out into the slip to clean it
> up.
>
> Bill Coleman
> Entrada, Erie PA
>
> On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> It looks like the pump version was not the problem.  I will confirm
> tomorrow, but according to Defender, I did indeed purchase the pressure
> limited version of the pump.  I don’t think they even sell the non-pr

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

I mostly solved the mystery of my fresh water pump and wanted to update the 
discussion.  I got another identical Jabsco pump from Defender to replace the 
new one that was not shutting off and I was able to test the new one without 
removing the previous new one.  It did exactly the same thing which made me 
convinced the problem was elsewhere.  The hint came when I realized that air 
was getting into the system because the water coming out of the tap had 
frequent air gaps in flow.  I knew the problem was in the inflow because the 
pressure that the pump generated was maintained in the outflow system for many 
days.  I did not think the problem was in the tank lines since they were not 
leaking water.  The manifold also seemed fine.  My suspicion then centered on 
the filter between the manifold and the pump.  I pulled that out of the line 
and the pump pressurized and shut off quickly.  I am still not sure where the 
filter housing was leaking air but there is no obvious seal between the housing 
and the base.  Unlike the pump, that filter design has changed radically in 
what came with the new pump, so I suspect I am not the first to have problems 
with it.  Dave

S/V Aries
1990 C 34+
New London, CT



> On Sep 9, 2022, at 2:52 PM, Korbey Hunt via CnC-List  
> wrote:
> 
> I have had new pump pressure switch failure occur shortly after installation.
> 
> Get Outlook for Android <https://aka.ms/AAb9ysg>
> From: Bill Coleman via CnC-List 
> Sent: Tuesday, September 6, 2022 12:06:47 PM
> To: Stus-List 
> Cc: Bill Coleman 
> Subject: Stus-List Re: Fresh water pump dead?
>  
> And not to beat a dead horse, but as I mentioned B4, I had no luck with the 
> t;ypical pumps available, and once I went with the Johnson, all my problems 
> went away. Maybe they have a better designed check valve.
> 
> Bill Coleman
> 
> On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
> Good thoughts.  I can see in my tanks and there is not any significant amount 
> of sludge.  I also have a strainer that was already in the line just before 
> the pump.  The pump came with one, but I elected to leave the existing one in 
> place.  I cleaned the filter and there was not much there.   Dave
> 
> David Knecht
> Rear Commodore
> Thames Yacht Club
> New London, CT
> 
> 
> 
>> On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List > <mailto:cnc-list@cnc-list.com>> wrote:
>> 
>> If you have that much sludge, you may want to consider an in-line strainer.  
>> I have one between my bilgewater intake and my diaphragm bilge pump, and I 
>> know I’ve saved the pump from a lot of crud.  My strainer is simple and 
>> looks like the product at the link below, but as I recall it was made by a 
>> company with a marine presence (like Forespar or Surflow).  Very easy to 
>> install and clean periodically.
>>  
>> 1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb In-Line 
>> Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI RV Camper 
>> Marine Boat Lawn (1): Amazon.com: Industrial & Scientific 
>> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.amazon.com%2FStrainer-Twist-Sprayer-Filter-Camper%2Fdp%2FB094NQNVMF%2Fref%3Dsr_1_6%3Fkeywords%3Dwater%2Bstrainer%2Bmarine%26qid%3D1662487937%26sr%3D8-6=05%7C01%7C%7Cbaa3cbdbc7034bec4ca108da90437baf%7C84df9e7fe9f640afb435%7C1%7C0%7C637980916769956902%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=YW1oO0aQP2GFx8FeHiKf%2BCIc%2FY8nbDJqDozcsV%2BvIDQ%3D=0>
>>  
>> From: Bill Coleman via CnC-List > <mailto:cnc-list@cnc-list.com>> 
>> Sent: Tuesday, September 06, 2022 1:52 PM
>> To: Stus-List mailto:cnc-list@cnc-list.com>>
>> Cc: Bill Coleman mailto:colt...@gmail.com>>
>> Subject: Stus-List Re: Fresh water pump dead?
>>  
>> Maybe you have a lot of sludge in your tank, I often put a hose on the far 
>> end of my water system and run a couple tanks out into the slip to clean it 
>> up.
>>  
>> Bill Coleman
>> Entrada, Erie PA
>>  
>> On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List 
>> mailto:cnc-list@cnc-list.com>> wrote:
>>> It looks like the pump version was not the problem.  I will confirm 
>>> tomorrow, but according to Defender, I did indeed purchase the pressure 
>>> limited version of the pump.  I don’t think they even sell the non-pressure 
>>> limited version.  The response I got from Jabsco/Xylem customer support 
>>> said to do this:
>>>  
>>> The problem with your pump is the Check Valve. What you would need to do is 
>>> too clea

Stus-List Re: Fresh water pump dead?

[Korbey Hunt via CnC-List]

I have had new pump pressure switch failure occur shortly after installation.

Get Outlook for Android<https://aka.ms/AAb9ysg>

From: Bill Coleman via CnC-List 
Sent: Tuesday, September 6, 2022 12:06:47 PM
To: Stus-List 
Cc: Bill Coleman 
Subject: Stus-List Re: Fresh water pump dead?

And not to beat a dead horse, but as I mentioned B4, I had no luck with the 
t;ypical pumps available, and once I went with the Johnson, all my problems 
went away. Maybe they have a better designed check valve.

Bill Coleman

On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Good thoughts.  I can see in my tanks and there is not any significant amount 
of sludge.  I also have a strainer that was already in the line just before the 
pump.  The pump came with one, but I elected to leave the existing one in 
place.  I cleaned the filter and there was not much there.   Dave

David Knecht
Rear Commodore
Thames Yacht Club
New London, CT



On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:

If you have that much sludge, you may want to consider an in-line strainer.  I 
have one between my bilgewater intake and my diaphragm bilge pump, and I know 
I’ve saved the pump from a lot of crud.  My strainer is simple and looks like 
the product at the link below, but as I recall it was made by a company with a 
marine presence (like Forespar or Surflow).  Very easy to install and clean 
periodically.

1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb In-Line 
Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI RV Camper 
Marine Boat Lawn (1): Amazon.com: Industrial & 
Scientific<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.amazon.com%2FStrainer-Twist-Sprayer-Filter-Camper%2Fdp%2FB094NQNVMF%2Fref%3Dsr_1_6%3Fkeywords%3Dwater%2Bstrainer%2Bmarine%26qid%3D1662487937%26sr%3D8-6=05%7C01%7C%7Cbaa3cbdbc7034bec4ca108da90437baf%7C84df9e7fe9f640afb435%7C1%7C0%7C637980916769956902%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=YW1oO0aQP2GFx8FeHiKf%2BCIc%2FY8nbDJqDozcsV%2BvIDQ%3D=0>

From: Bill Coleman via CnC-List 
mailto:cnc-list@cnc-list.com>>
Sent: Tuesday, September 06, 2022 1:52 PM
To: Stus-List mailto:cnc-list@cnc-list.com>>
Cc: Bill Coleman mailto:colt...@gmail.com>>
Subject: Stus-List Re: Fresh water pump dead?

Maybe you have a lot of sludge in your tank, I often put a hose on the far end 
of my water system and run a couple tanks out into the slip to clean it up.

Bill Coleman
Entrada, Erie PA

On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
It looks like the pump version was not the problem.  I will confirm tomorrow, 
but according to Defender, I did indeed purchase the pressure limited version 
of the pump.  I don’t think they even sell the non-pressure limited version.  
The response I got from Jabsco/Xylem customer support said to do this:

The problem with your pump is the Check Valve. What you would need to do is too 
clean it. Take the six screws out they would are Long then Short in size; the 
pump will come part in two pieces the motor and lower housing as one piece and 
the pump head; once you spread the two pieces apart the check valve will 
usually fall out by itself. The check valve looks like a triangle with suction 
cups in each corner on one side and the other side theirs a rubber diaphragm in 
the center; that are machine press in(Take a picture of the check valve “Both 
Sides”). Take the check valve and place it in a bucket of warm water wait a 
couple of minutes. While the check valve is soaking; take the head where the 
suction and the discharge hose hookup and rotate and look inside. You will see 
a circle in the center a 1/8” edge; take a wet towel and wipe off that edge 
(Front, Back and Top Edge). Take the Check Valve when it’s submerged pick it up 
and slush it back and forth in the bucket of water for a couple of minutes 
(While Submerged). This should clear all the particles. Place the check valve 
back into the Head of the pump and put it back together. 90% of the time your 
pump will be back to normal.

Seems excessive for a brand new pump but I guess I will have to try it.
Dave

S/V Aries
1990 C 34+
New London, CT

Stus-List Re: Fresh water pump dead?

[Bill Coleman via CnC-List]

And not to beat a dead horse, but as I mentioned B4, I had no luck with the
t;ypical pumps available, and once I went with the Johnson, all my problems
went away. Maybe they have a better designed check valve.

Bill Coleman

On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> Good thoughts.  I can see in my tanks and there is not any significant
> amount of sludge.  I also have a strainer that was already in the line just
> before the pump.  The pump came with one, but I elected to leave the
> existing one in place.  I cleaned the filter and there was not much there.
>   Dave
>
> David Knecht
> Rear Commodore
> Thames Yacht Club
> New London, CT
>
>
>
> On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List 
> wrote:
>
> If you have that much sludge, you may want to consider an in-line
> strainer.  I have one between my bilgewater intake and my diaphragm bilge
> pump, and I know I’ve saved the pump from a lot of crud.  My strainer is
> simple and looks like the product at the link below, but as I recall it was
> made by a company with a marine presence (like Forespar or Surflow).  Very
> easy to install and clean periodically.
>
> 1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb
> In-Line Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI
> RV Camper Marine Boat Lawn (1): Amazon.com: Industrial & Scientific
> <https://www.amazon.com/Strainer-Twist-Sprayer-Filter-Camper/dp/B094NQNVMF/ref=sr_1_6?keywords=water+strainer+marine=1662487937=8-6>
>
> *From:* Bill Coleman via CnC-List 
> *Sent:* Tuesday, September 06, 2022 1:52 PM
> *To:* Stus-List 
> *Cc:* Bill Coleman 
> *Subject:* Stus-List Re: Fresh water pump dead?
>
> Maybe you have a lot of sludge in your tank, I often put a hose on the far
> end of my water system and run a couple tanks out into the slip to clean it
> up.
>
> Bill Coleman
> Entrada, Erie PA
>
> On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> It looks like the pump version was not the problem.  I will confirm
> tomorrow, but according to Defender, I did indeed purchase the pressure
> limited version of the pump.  I don’t think they even sell the non-pressure
> limited version.  The response I got from Jabsco/Xylem customer support
> said to do this:
>
> The problem with your pump is the Check Valve. What you would need to do
> is too clean it. Take the six screws out they would are Long then Short in
> size; the pump will come part in two pieces the motor and lower housing as
> one piece and the pump head; once you spread the two pieces apart the check
> valve will usually fall out by itself. The check valve looks like a
> triangle with suction cups in each corner on one side and the other side
> theirs a rubber diaphragm in the center; that are machine press in(Take a
> picture of the check valve “Both Sides”). Take the check valve and place it
> in a bucket of warm water wait a couple of minutes. While the check valve
> is soaking; take the head where the suction and the discharge hose hookup
> and rotate and look inside. You will see a circle in the center a 1/8”
> edge; take a wet towel and wipe off that edge (Front, Back and Top Edge).
> Take the Check Valve when it’s submerged pick it up and slush it back and
> forth in the bucket of water for a couple of minutes (While Submerged).
> This should clear all the particles. Place the check valve back into the
> Head of the pump and put it back together. 90% of the time your pump will
> be back to normal.
>
> Seems excessive for a brand new pump but I guess I will have to try it.
> Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
> 
>
>
>

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

Good thoughts.  I can see in my tanks and there is not any significant amount 
of sludge.  I also have a strainer that was already in the line just before the 
pump.  The pump came with one, but I elected to leave the existing one in 
place.  I cleaned the filter and there was not much there.   Dave

David Knecht
Rear Commodore
Thames Yacht Club
New London, CT



> On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List  
> wrote:
> 
> If you have that much sludge, you may want to consider an in-line strainer.  
> I have one between my bilgewater intake and my diaphragm bilge pump, and I 
> know I’ve saved the pump from a lot of crud.  My strainer is simple and looks 
> like the product at the link below, but as I recall it was made by a company 
> with a marine presence (like Forespar or Surflow).  Very easy to install and 
> clean periodically.
>  
> 1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb In-Line 
> Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI RV Camper 
> Marine Boat Lawn (1): Amazon.com: Industrial & Scientific 
> <https://www.amazon.com/Strainer-Twist-Sprayer-Filter-Camper/dp/B094NQNVMF/ref=sr_1_6?keywords=water+strainer+marine=1662487937=8-6>
>  
> From: Bill Coleman via CnC-List  <mailto:cnc-list@cnc-list.com>> 
> Sent: Tuesday, September 06, 2022 1:52 PM
> To: Stus-List mailto:cnc-list@cnc-list.com>>
> Cc: Bill Coleman mailto:colt...@gmail.com>>
> Subject: Stus-List Re: Fresh water pump dead?
>  
> Maybe you have a lot of sludge in your tank, I often put a hose on the far 
> end of my water system and run a couple tanks out into the slip to clean it 
> up.
>  
> Bill Coleman
> Entrada, Erie PA
>  
> On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
>> It looks like the pump version was not the problem.  I will confirm 
>> tomorrow, but according to Defender, I did indeed purchase the pressure 
>> limited version of the pump.  I don’t think they even sell the non-pressure 
>> limited version.  The response I got from Jabsco/Xylem customer support said 
>> to do this:
>>  
>> The problem with your pump is the Check Valve. What you would need to do is 
>> too clean it. Take the six screws out they would are Long then Short in 
>> size; the pump will come part in two pieces the motor and lower housing as 
>> one piece and the pump head; once you spread the two pieces apart the check 
>> valve will usually fall out by itself. The check valve looks like a triangle 
>> with suction cups in each corner on one side and the other side theirs a 
>> rubber diaphragm in the center; that are machine press in(Take a picture of 
>> the check valve “Both Sides”). Take the check valve and place it in a bucket 
>> of warm water wait a couple of minutes. While the check valve is soaking; 
>> take the head where the suction and the discharge hose hookup and rotate and 
>> look inside. You will see a circle in the center a 1/8” edge; take a wet 
>> towel and wipe off that edge (Front, Back and Top Edge). Take the Check 
>> Valve when it’s submerged pick it up and slush it back and forth in the 
>> bucket of water for a couple of minutes (While Submerged). This should clear 
>> all the particles. Place the check valve back into the Head of the pump and 
>> put it back together. 90% of the time your pump will be back to normal.
>>  
>> Seems excessive for a brand new pump but I guess I will have to try it.
>> Dave
>>  
>> S/V Aries
>> 1990 C 34+
>> New London, CT
>> 
>> 

Stus-List Re: Fresh water pump dead?

[Matthew via CnC-List]

If you have that much sludge, you may want to consider an in-line strainer.  I 
have one between my bilgewater intake and my diaphragm bilge pump, and I know 
I’ve saved the pump from a lot of crud.  My strainer is simple and looks like 
the product at the link below, but as I recall it was made by a company with a 
marine presence (like Forespar or Surflow).  Very easy to install and clean 
periodically.

 

1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb In-Line 
Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI RV Camper 
Marine Boat Lawn (1): Amazon.com: Industrial  
<https://www.amazon.com/Strainer-Twist-Sprayer-Filter-Camper/dp/B094NQNVMF/ref=sr_1_6?keywords=water+strainer+marine=1662487937=8-6>
 & Scientific

 

From: Bill Coleman via CnC-List  
Sent: Tuesday, September 06, 2022 1:52 PM
To: Stus-List 
Cc: Bill Coleman 
Subject: Stus-List Re: Fresh water pump dead?

 

Maybe you have a lot of sludge in your tank, I often put a hose on the far end 
of my water system and run a couple tanks out into the slip to clean it up.

 

Bill Coleman

Entrada, Erie PA

 

On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List mailto:cnc-list@cnc-list.com> > wrote:

It looks like the pump version was not the problem.  I will confirm tomorrow, 
but according to Defender, I did indeed purchase the pressure limited version 
of the pump.  I don’t think they even sell the non-pressure limited version.  
The response I got from Jabsco/Xylem customer support said to do this:

 

The problem with your pump is the Check Valve. What you would need to do is too 
clean it. Take the six screws out they would are Long then Short in size; the 
pump will come part in two pieces the motor and lower housing as one piece and 
the pump head; once you spread the two pieces apart the check valve will 
usually fall out by itself. The check valve looks like a triangle with suction 
cups in each corner on one side and the other side theirs a rubber diaphragm in 
the center; that are machine press in(Take a picture of the check valve “Both 
Sides”). Take the check valve and place it in a bucket of warm water wait a 
couple of minutes. While the check valve is soaking; take the head where the 
suction and the discharge hose hookup and rotate and look inside. You will see 
a circle in the center a 1/8” edge; take a wet towel and wipe off that edge 
(Front, Back and Top Edge). Take the Check Valve when it’s submerged pick it up 
and slush it back and forth in the bucket of water for a couple of minutes 
(While Submerged). This should clear all the particles. Place the check valve 
back into the Head of the pump and put it back together. 90% of the time your 
pump will be back to normal.

 

Seems excessive for a brand new pump but I guess I will have to try it.

Dave

 

S/V Aries

1990 C 34+

New London, CT




 

Stus-List Re: Fresh water pump dead?

[Bill Coleman via CnC-List]

Maybe you have a lot of sludge in your tank, I often put a hose on the far
end of my water system and run a couple tanks out into the slip to clean it
up.

Bill Coleman
Entrada, Erie PA

On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> It looks like the pump version was not the problem.  I will confirm
> tomorrow, but according to Defender, I did indeed purchase the pressure
> limited version of the pump.  I don’t think they even sell the non-pressure
> limited version.  The response I got from Jabsco/Xylem customer support
> said to do this:
>
> The problem with your pump is the Check Valve. What you would need to do
> is too clean it. Take the six screws out they would are Long then Short in
> size; the pump will come part in two pieces the motor and lower housing as
> one piece and the pump head; once you spread the two pieces apart the check
> valve will usually fall out by itself. The check valve looks like a
> triangle with suction cups in each corner on one side and the other side
> theirs a rubber diaphragm in the center; that are machine press in(Take a
> picture of the check valve “Both Sides”). Take the check valve and place it
> in a bucket of warm water wait a couple of minutes. While the check valve
> is soaking; take the head where the suction and the discharge hose hookup
> and rotate and look inside. You will see a circle in the center a 1/8”
> edge; take a wet towel and wipe off that edge (Front, Back and Top Edge).
> Take the Check Valve when it’s submerged pick it up and slush it back and
> forth in the bucket of water for a couple of minutes (While Submerged).
> This should clear all the particles. Place the check valve back into the
> Head of the pump and put it back together. 90% of the time your pump will
> be back to normal.
>
> Seems excessive for a brand new pump but I guess I will have to try it.
> Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
>

Stus-List Re: Fresh water pump dead?

[Matthew via CnC-List]

I agree.  If a brand new pump came with a check valve problem, it seems to me 
Jabsco should replace the pump.  Does the pump have a warranty?  Are you going 
to void the warranty by opening the pump as Jabsco suggested?

 

From: David Knecht via CnC-List  
Sent: Tuesday, September 06, 2022 1:17 PM
To: CnC CnC discussion list 
Cc: David Knecht 
Subject: Stus-List Re: Fresh water pump dead?

 

It looks like the pump version was not the problem.  I will confirm tomorrow, 
but according to Defender, I did indeed purchase the pressure limited version 
of the pump.  I don’t think they even sell the non-pressure limited version.  
The response I got from Jabsco/Xylem customer support said to do this:

 

The problem with your pump is the Check Valve. What you would need to do is too 
clean it. Take the six screws out they would are Long then Short in size; the 
pump will come part in two pieces the motor and lower housing as one piece and 
the pump head; once you spread the two pieces apart the check valve will 
usually fall out by itself. The check valve looks like a triangle with suction 
cups in each corner on one side and the other side theirs a rubber diaphragm in 
the center; that are machine press in(Take a picture of the check valve “Both 
Sides”). Take the check valve and place it in a bucket of warm water wait a 
couple of minutes. While the check valve is soaking; take the head where the 
suction and the discharge hose hookup and rotate and look inside. You will see 
a circle in the center a 1/8” edge; take a wet towel and wipe off that edge 
(Front, Back and Top Edge). Take the Check Valve when it’s submerged pick it up 
and slush it back and forth in the bucket of water for a couple of minutes 
(While Submerged). This should clear all the particles. Place the check valve 
back into the Head of the pump and put it back together. 90% of the time your 
pump will be back to normal.

 

Seems excessive for a brand new pump but I guess I will have to try it.

Dave

 

S/V Aries

1990 C 34+

New London, CT




 

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

It looks like the pump version was not the problem.  I will confirm tomorrow, 
but according to Defender, I did indeed purchase the pressure limited version 
of the pump.  I don’t think they even sell the non-pressure limited version.  
The response I got from Jabsco/Xylem customer support said to do this:

The problem with your pump is the Check Valve. What you would need to do is too 
clean it. Take the six screws out they would are Long then Short in size; the 
pump will come part in two pieces the motor and lower housing as one piece and 
the pump head; once you spread the two pieces apart the check valve will 
usually fall out by itself. The check valve looks like a triangle with suction 
cups in each corner on one side and the other side theirs a rubber diaphragm in 
the center; that are machine press in(Take a picture of the check valve “Both 
Sides”). Take the check valve and place it in a bucket of warm water wait a 
couple of minutes. While the check valve is soaking; take the head where the 
suction and the discharge hose hookup and rotate and look inside. You will see 
a circle in the center a 1/8” edge; take a wet towel and wipe off that edge 
(Front, Back and Top Edge). Take the Check Valve when it’s submerged pick it up 
and slush it back and forth in the bucket of water for a couple of minutes 
(While Submerged). This should clear all the particles. Place the check valve 
back into the Head of the pump and put it back together. 90% of the time your 
pump will be back to normal.

Seems excessive for a brand new pump but I guess I will have to try it.
Dave

S/V Aries
1990 C 34+
New London, CT

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

I think that is exactly what happened to me.  I will confirm when I get to the 
boat on Wednesday.  Dave

David Knecht
Rear Commodore
Thames Yacht Club
New London, CT



> On Sep 4, 2022, at 5:58 PM, Nate Flesness via CnC-List 
>  wrote:
> 
> Parmax1 is NOT pressure limited. 
> Parmax 1 Pressure Limited, is!
> 
> Nice labeling huh?
> I bought the wrong one too... 
> 
> Nate Flesness
> 
> On Thu, Sep 1, 2022 at 9:40 AM David Knecht via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
> I am back to working on the freshwater pump problem.  I replaced the old pump 
> (unknown age) with the same model Jabsco ParMax 1 that had failed and now it 
> is pressurizing the system, so the old pump was definitely the problem.  
> However, the new pump will not shut off, even if left for extended time.  I 
> can find no water or air leaks and the system stays pressurized enough to get 
> water from the sink days after running the pump, so it does not seem to have 
> a leak on the outlet side.  I am stumped as to why it will not shut off.  
> Suggestions?  Dave
> 
> S/V Aries
> 1990 C 34+
> New London, CT
> 
> 
> 
>> On Aug 9, 2022, at 3:17 PM, Chris Riedinger > > wrote:
>> 
>> The new shurflo is 4138-111-E65
>> 
>> It's 12v, 6.5a max and 3gpm. It's got 55psi auto shutoff 
>> 
>> On Tue, Aug 9, 2022, 6:41 AM Chris Riedinger > > wrote:
>> Was a jabsco, I replaced with sureflo. 
>> 
>> I can't find the model# on my log- I'll take a peek down there this morning 
>> . 
>> 
>> On Tue, Aug 9, 2022, 6:17 AM David Knecht > > wrote:
>> I can hear and feel the pump running fine, so I don’t think it is a 
>> connection issue.  What pump did you replace yours with?  Dave
>> 
>> S/V Aries
>> 1990 C 34+
>> New London, CT
>> 
>> 
>> 
>>> On Aug 8, 2022, at 10:35 PM, Chris Riedinger >> > wrote:
>>> 
>>> Checking breakers or fuses
>>> 
>>> Any connections made - any corrosion in there? Are you getting 
>>> (batteryV+)12v or only 10.2 indicating a possible short
>>> 
>>> Our water pump, which I believe was the original, just died last year and I 
>>> swapped it out. I wish I had done that sooner, the new pump is both quieter 
>>> and uses less aH 
>>> 
>>> 
>>> 
>>> Swaloon 37/40+
>>> 
>>> On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List 
>>> mailto:cnc-list@cnc-list.com>> wrote:
>>> Hi Folks- I found that my fresh water pump was running continuously today 
>>> and not pressurizing the system and not cutting out when pressurized.  I 
>>> confirmed there was water in the tanks and flow to the manifold that 
>>> controls tank choice.  But there was no water in the filter after the 
>>> manifold and before the pump.  I removed the hose connecting the 
>>> manifold/filter to the pump and when I sucked on it, I got water, so 
>>> nothing appears blocked.  When I turned the pump on (Par-Max4), I could not 
>>> feel any suction on the opening.  I presume these are self-priming pumps, 
>>> so I should have felt some pull.  The pump is 30 years old, so I am 
>>> presuming it is just dead, but wondering if there is any other scenario 
>>> that might make it not work before I replace it.  Thanks- Dave
>>> 
>>> S/V Aries
>>> 1990 C 34+
>>> New London, CT
>>> 
>>> 
>>> 
>>> 
>> 
> 

Stus-List Re: Fresh water pump dead?

[Nate Flesness via CnC-List]

Parmax1 is NOT pressure limited.
Parmax 1 Pressure Limited, is!

Nice labeling huh?
I bought the wrong one too...

Nate Flesness

On Thu, Sep 1, 2022 at 9:40 AM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> I am back to working on the freshwater pump problem.  I replaced the old
> pump (unknown age) with the same model Jabsco ParMax 1 that had failed and
> now it is pressurizing the system, so the old pump was definitely the
> problem.  However, the new pump will not shut off, even if left for
> extended time.  I can find no water or air leaks and the system stays
> pressurized enough to get water from the sink days after running the pump,
> so it does not seem to have a leak on the outlet side.  I am stumped as to
> why it will not shut off.  Suggestions?  Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
> On Aug 9, 2022, at 3:17 PM, Chris Riedinger 
> wrote:
>
> The new shurflo is 4138-111-E65
>
> It's 12v, 6.5a max and 3gpm. It's got 55psi auto shutoff
>
> On Tue, Aug 9, 2022, 6:41 AM Chris Riedinger 
> wrote:
>
>> Was a jabsco, I replaced with sureflo.
>>
>> I can't find the model# on my log- I'll take a peek down there this
>> morning .
>>
>> On Tue, Aug 9, 2022, 6:17 AM David Knecht  wrote:
>>
>>> I can hear and feel the pump running fine, so I don’t think it is a
>>> connection issue.  What pump did you replace yours with?  Dave
>>>
>>> S/V Aries
>>> 1990 C 34+
>>> New London, CT
>>>
>>>
>>> On Aug 8, 2022, at 10:35 PM, Chris Riedinger 
>>> wrote:
>>>
>>> Checking breakers or fuses
>>>
>>> Any connections made - any corrosion in there? Are you getting
>>> (batteryV+)12v or only 10.2 indicating a possible short
>>>
>>> Our water pump, which I believe was the original, just died last year
>>> and I swapped it out. I wish I had done that sooner, the new pump is both
>>> quieter and uses less aH
>>>
>>>
>>>
>>> Swaloon 37/40+
>>>
>>> On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List <
>>> cnc-list@cnc-list.com> wrote:
>>>
 Hi Folks- I found that my fresh water pump was running continuously
 today and not pressurizing the system and not cutting out when
 pressurized.  I confirmed there was water in the tanks and flow to the
 manifold that controls tank choice.  But there was no water in the filter
 after the manifold and before the pump.  I removed the hose connecting the
 manifold/filter to the pump and when I sucked on it, I got water, so
 nothing appears blocked.  When I turned the pump on (Par-Max4), I could not
 feel any suction on the opening.  I presume these are self-priming pumps,
 so I should have felt some pull.  The pump is 30 years old, so I am
 presuming it is just dead, but wondering if there is any other scenario
 that might make it not work before I replace it.  Thanks- Dave

 S/V Aries
 1990 C 34+
 New London, CT


 
>>>
>>>
>>>
>

Stus-List Re: Fresh water pump dead?

[Korbey Hunt via CnC-List]

Classic pressure switch problem.  I wasted countless hours an $$$ with Jabsco 
pumps.  Recommend you try a different manufacture.  Many cheaper, more reliable 
options on Amazon.

Get Outlook for Android<https://aka.ms/AAb9ysg>

From: Dennis C. via CnC-List 
Sent: Thursday, September 1, 2022 8:41:35 AM
To: Stus-List 
Cc: Dennis C. 
Subject: Stus-List Re: Fresh water pump dead?

Did you liberally purge it?  If it has any air in it, it will continue to run.  
Run several gallons through it and then check it.

Barring that, the pressure switch may need adjusting.
--
Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Thu, Sep 1, 2022 at 9:40 AM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
I am back to working on the freshwater pump problem.  I replaced the old pump 
(unknown age) with the same model Jabsco ParMax 1 that had failed and now it is 
pressurizing the system, so the old pump was definitely the problem.  However, 
the new pump will not shut off, even if left for extended time.  I can find no 
water or air leaks and the system stays pressurized enough to get water from 
the sink days after running the pump, so it does not seem to have a leak on the 
outlet side.  I am stumped as to why it will not shut off.  Suggestions?  Dave

S/V Aries
1990 C 34+
New London, CT

[cid:182f9eb4bcc5349b00c1]

Stus-List Re: Fresh water pump dead?

[Dennis C. via CnC-List]

Did you liberally purge it?  If it has any air in it, it will continue to
run.  Run several gallons through it and then check it.

Barring that, the pressure switch may need adjusting.
--
Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Thu, Sep 1, 2022 at 9:40 AM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> I am back to working on the freshwater pump problem.  I replaced the old
> pump (unknown age) with the same model Jabsco ParMax 1 that had failed and
> now it is pressurizing the system, so the old pump was definitely the
> problem.  However, the new pump will not shut off, even if left for
> extended time.  I can find no water or air leaks and the system stays
> pressurized enough to get water from the sink days after running the pump,
> so it does not seem to have a leak on the outlet side.  I am stumped as to
> why it will not shut off.  Suggestions?  Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
>

Stus-List Re: Fresh water pump dead?

[Bill Coleman via CnC-List]

I had similar problems with jabsco and shurflo, after going with the
Johnson, no problems.
I wondered if it could be a check valve, leaking back to the tank.  Another
thing to look at is the orientation of the pump - make sure you follow
directions, I think the exit should be on top.  you want to make sure it
doesn't trap air in the chamber, and running continuously could be just
trying to pump air.

Bill Coleman
Erie PA

On Thu, Sep 1, 2022 at 10:40 AM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> I am back to working on the freshwater pump problem.  I replaced the old
> pump (unknown age) with the same model Jabsco ParMax 1 that had failed and
> now it is pressurizing the system, so the old pump was definitely the
> problem.  However, the new pump will not shut off, even if left for
> extended time.  I can find no water or air leaks and the system stays
> pressurized enough to get water from the sink days after running the pump,
> so it does not seem to have a leak on the outlet side.  I am stumped as to
> why it will not shut off.  Suggestions?  Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
> On Aug 9, 2022, at 3:17 PM, Chris Riedinger 
> wrote:
>
> The new shurflo is 4138-111-E65
>
> It's 12v, 6.5a max and 3gpm. It's got 55psi auto shutoff
>
> On Tue, Aug 9, 2022, 6:41 AM Chris Riedinger 
> wrote:
>
>> Was a jabsco, I replaced with sureflo.
>>
>> I can't find the model# on my log- I'll take a peek down there this
>> morning .
>>
>> On Tue, Aug 9, 2022, 6:17 AM David Knecht  wrote:
>>
>>> I can hear and feel the pump running fine, so I don’t think it is a
>>> connection issue.  What pump did you replace yours with?  Dave
>>>
>>> S/V Aries
>>> 1990 C 34+
>>> New London, CT
>>>
>>>
>>> On Aug 8, 2022, at 10:35 PM, Chris Riedinger 
>>> wrote:
>>>
>>> Checking breakers or fuses
>>>
>>> Any connections made - any corrosion in there? Are you getting
>>> (batteryV+)12v or only 10.2 indicating a possible short
>>>
>>> Our water pump, which I believe was the original, just died last year
>>> and I swapped it out. I wish I had done that sooner, the new pump is both
>>> quieter and uses less aH
>>>
>>>
>>>
>>> Swaloon 37/40+
>>>
>>> On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List <
>>> cnc-list@cnc-list.com> wrote:
>>>
 Hi Folks- I found that my fresh water pump was running continuously
 today and not pressurizing the system and not cutting out when
 pressurized.  I confirmed there was water in the tanks and flow to the
 manifold that controls tank choice.  But there was no water in the filter
 after the manifold and before the pump.  I removed the hose connecting the
 manifold/filter to the pump and when I sucked on it, I got water, so
 nothing appears blocked.  When I turned the pump on (Par-Max4), I could not
 feel any suction on the opening.  I presume these are self-priming pumps,
 so I should have felt some pull.  The pump is 30 years old, so I am
 presuming it is just dead, but wondering if there is any other scenario
 that might make it not work before I replace it.  Thanks- Dave

 S/V Aries
 1990 C 34+
 New London, CT


 
>>>
>>>
>>>
>

Stus-List Re: Fresh water pump dead?

[Neil Andersen via CnC-List]

Is your water tank full??

Neil Andersen, W3NEA
Rock Hall, MD 21661
484-354-8800

From: David Knecht via CnC-List 
Sent: Thursday, September 1, 2022 10:40:02 AM
To: CnC CnC discussion list 
Cc: David Knecht 
Subject: Stus-List Re: Fresh water pump dead?

I am back to working on the freshwater pump problem.  I replaced the old pump 
(unknown age) with the same model Jabsco ParMax 1 that had failed and now it is 
pressurizing the system, so the old pump was definitely the problem.  However, 
the new pump will not shut off, even if left for extended time.  I can find no 
water or air leaks and the system stays pressurized enough to get water from 
the sink days after running the pump, so it does not seem to have a leak on the 
outlet side.  I am stumped as to why it will not shut off.  Suggestions?  Dave

S/V Aries
1990 C 34+
New London, CT

[cid:4073BE72-4704-4EA7-8EBA-B73B833F502B]

On Aug 9, 2022, at 3:17 PM, Chris Riedinger 
mailto:chris.riedin...@gmail.com>> wrote:

The new shurflo is 4138-111-E65

It's 12v, 6.5a max and 3gpm. It's got 55psi auto shutoff

On Tue, Aug 9, 2022, 6:41 AM Chris Riedinger 
mailto:chris.riedin...@gmail.com>> wrote:
Was a jabsco, I replaced with sureflo.

I can't find the model# on my log- I'll take a peek down there this morning .

On Tue, Aug 9, 2022, 6:17 AM David Knecht 
mailto:davidakne...@gmail.com>> wrote:
I can hear and feel the pump running fine, so I don’t think it is a connection 
issue.  What pump did you replace yours with?  Dave

S/V Aries
1990 C 34+
New London, CT

[X]

On Aug 8, 2022, at 10:35 PM, Chris Riedinger 
mailto:chris.riedin...@gmail.com>> wrote:

Checking breakers or fuses

Any connections made - any corrosion in there? Are you getting (batteryV+)12v 
or only 10.2 indicating a possible short

Our water pump, which I believe was the original, just died last year and I 
swapped it out. I wish I had done that sooner, the new pump is both quieter and 
uses less aH



Swaloon 37/40+

On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Hi Folks- I found that my fresh water pump was running continuously today and 
not pressurizing the system and not cutting out when pressurized.  I confirmed 
there was water in the tanks and flow to the manifold that controls tank 
choice.  But there was no water in the filter after the manifold and before the 
pump.  I removed the hose connecting the manifold/filter to the pump and when I 
sucked on it, I got water, so nothing appears blocked.  When I turned the pump 
on (Par-Max4), I could not feel any suction on the opening.  I presume these 
are self-priming pumps, so I should have felt some pull.  The pump is 30 years 
old, so I am presuming it is just dead, but wondering if there is any other 
scenario that might make it not work before I replace it.  Thanks- Dave

S/V Aries
1990 C 34+
New London, CT

[X]

Stus-List Re: Fresh water pump dead?

[james drew via CnC-List]

I used to have problems in the spring upon first filling the tank. I could not 
find any air leaks but the pump would start periodically.  Eventually I 
discovered it was air in the hot water tank.  So I bleed it thoroughly through 
the pressure release valve and that stops the problem.
Regards and good luck,
Jpdsailor

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

I am back to working on the freshwater pump problem.  I replaced the old pump 
(unknown age) with the same model Jabsco ParMax 1 that had failed and now it is 
pressurizing the system, so the old pump was definitely the problem.  However, 
the new pump will not shut off, even if left for extended time.  I can find no 
water or air leaks and the system stays pressurized enough to get water from 
the sink days after running the pump, so it does not seem to have a leak on the 
outlet side.  I am stumped as to why it will not shut off.  Suggestions?  Dave

S/V Aries
1990 C 34+
New London, CT



> On Aug 9, 2022, at 3:17 PM, Chris Riedinger  wrote:
> 
> The new shurflo is 4138-111-E65
> 
> It's 12v, 6.5a max and 3gpm. It's got 55psi auto shutoff 
> 
> On Tue, Aug 9, 2022, 6:41 AM Chris Riedinger  > wrote:
> Was a jabsco, I replaced with sureflo. 
> 
> I can't find the model# on my log- I'll take a peek down there this morning . 
> 
> On Tue, Aug 9, 2022, 6:17 AM David Knecht  > wrote:
> I can hear and feel the pump running fine, so I don’t think it is a 
> connection issue.  What pump did you replace yours with?  Dave
> 
> S/V Aries
> 1990 C 34+
> New London, CT
> 
> 
> 
>> On Aug 8, 2022, at 10:35 PM, Chris Riedinger > > wrote:
>> 
>> Checking breakers or fuses
>> 
>> Any connections made - any corrosion in there? Are you getting 
>> (batteryV+)12v or only 10.2 indicating a possible short
>> 
>> Our water pump, which I believe was the original, just died last year and I 
>> swapped it out. I wish I had done that sooner, the new pump is both quieter 
>> and uses less aH 
>> 
>> 
>> 
>> Swaloon 37/40+
>> 
>> On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List 
>> mailto:cnc-list@cnc-list.com>> wrote:
>> Hi Folks- I found that my fresh water pump was running continuously today 
>> and not pressurizing the system and not cutting out when pressurized.  I 
>> confirmed there was water in the tanks and flow to the manifold that 
>> controls tank choice.  But there was no water in the filter after the 
>> manifold and before the pump.  I removed the hose connecting the 
>> manifold/filter to the pump and when I sucked on it, I got water, so nothing 
>> appears blocked.  When I turned the pump on (Par-Max4), I could not feel any 
>> suction on the opening.  I presume these are self-priming pumps, so I should 
>> have felt some pull.  The pump is 30 years old, so I am presuming it is just 
>> dead, but wondering if there is any other scenario that might make it not 
>> work before I replace it.  Thanks- Dave
>> 
>> S/V Aries
>> 1990 C 34+
>> New London, CT
>> 
>> 
>> 
>> 
> 

Stus-List Re: Fresh water pump dead?

[Chris Riedinger via CnC-List]

The gray flexible freshwater lines we have in our boats are not supposed to
need Teflon tape.

In fact, Teflon tape is not for sealing. It is only to lubricate threads.

Threads do sealing in pipe (taper) thread forms, faces of components and
flared ends do sealing in the system we have.



On Fri, Aug 12, 2022, 12:56 PM Neil Andersen via CnC-List <
cnc-list@cnc-list.com> wrote:

> My new pump takes a few minutes to shut off once the level drops.  I think
> it is to push as much out of the hose.
>
> Neil Andersen, W3NEA
> Rock Hall, MD 21661
> 484-354-8800
> --
> *From:* David Knecht via CnC-List 
> *Sent:* Friday, August 12, 2022 3:37:09 PM
> *To:* CnC CnC discussion list 
> *Cc:* David Knecht 
> *Subject:* Stus-List Re: Fresh water pump dead?
>
> I took the old one apart and have no idea how it works.  Certainly had no
> impeller so I am presuming diaphragm.  I have installed a newer model of
> the same Jabsco pump.  In their infinite wisdom, they changed the mounting
> bracket size slightly so only two of 4 holes lined up.  That is almost as
> annoying as Standard Horizon, who sets the standard for this by using a
> different and incompatible charging base with each model of VHF handheld
> radio.  Had to drill the other two which was remarkably awkward in the
> tight space.  Fortunately I have a very small portable drill which made it
> possible. When assembled, it definitely generated vacuum on the inlet
> unlike the other pump.  It seems to be generating water pressure now, but
> is not switching off when reaching cut off pressure.  I am guessing that
> there is an air leak in the inlet side as there is no water leaking
> anywhere I could find.  I did not have time to clean all the threaded PEX?
> fittings which were wrapped with teflon tape and looked pretty nasty.  I
> will take those apart and rewrap them and assemble and see if that fixes
> the problem when I get back to the job.  Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
> On Aug 12, 2022, at 3:02 PM, dwight veinot via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> Is it a diaphragm pump?  If so the diaphragm may be shot
>
> On Wed, Aug 10, 2022 at 10:46 AM Bill Coleman via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> Try taking it apart and cleaning the vanes. Sometimes they get crud in
> there.
>
> Bill Coleman
>
> On Mon, Aug 8, 2022 at 10:24 PM David Knecht via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> Hi Folks- I found that my fresh water pump was running continuously today
> and not pressurizing the system and not cutting out when pressurized.  I
> confirmed there was water in the tanks and flow to the manifold that
> controls tank choice.  But there was no water in the filter after the
> manifold and before the pump.  I removed the hose connecting the
> manifold/filter to the pump and when I sucked on it, I got water, so
> nothing appears blocked.  When I turned the pump on (Par-Max4), I could not
> feel any suction on the opening.  I presume these are self-priming pumps,
> so I should have felt some pull.  The pump is 30 years old, so I am
> presuming it is just dead, but wondering if there is any other scenario
> that might make it not work before I replace it.  Thanks- Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
> 
>
> --
> Sent from Gmail Mobile
>
>
>

Stus-List Re: Fresh water pump dead?

[Neil Andersen via CnC-List]

My new pump takes a few minutes to shut off once the level drops.  I think it 
is to push as much out of the hose.

Neil Andersen, W3NEA
Rock Hall, MD 21661
484-354-8800

From: David Knecht via CnC-List 
Sent: Friday, August 12, 2022 3:37:09 PM
To: CnC CnC discussion list 
Cc: David Knecht 
Subject: Stus-List Re: Fresh water pump dead?

I took the old one apart and have no idea how it works.  Certainly had no 
impeller so I am presuming diaphragm.  I have installed a newer model of the 
same Jabsco pump.  In their infinite wisdom, they changed the mounting bracket 
size slightly so only two of 4 holes lined up.  That is almost as annoying as 
Standard Horizon, who sets the standard for this by using a different and 
incompatible charging base with each model of VHF handheld radio.  Had to drill 
the other two which was remarkably awkward in the tight space.  Fortunately I 
have a very small portable drill which made it possible. When assembled, it 
definitely generated vacuum on the inlet unlike the other pump.  It seems to be 
generating water pressure now, but is not switching off when reaching cut off 
pressure.  I am guessing that there is an air leak in the inlet side as there 
is no water leaking anywhere I could find.  I did not have time to clean all 
the threaded PEX? fittings which were wrapped with teflon tape and looked 
pretty nasty.  I will take those apart and rewrap them and assemble and see if 
that fixes the problem when I get back to the job.  Dave

S/V Aries
1990 C 34+
New London, CT

[cid:4073BE72-4704-4EA7-8EBA-B73B833F502B]

On Aug 12, 2022, at 3:02 PM, dwight veinot via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:

Is it a diaphragm pump?  If so the diaphragm may be shot

On Wed, Aug 10, 2022 at 10:46 AM Bill Coleman via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Try taking it apart and cleaning the vanes. Sometimes they get crud in there.

Bill Coleman

On Mon, Aug 8, 2022 at 10:24 PM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Hi Folks- I found that my fresh water pump was running continuously today and 
not pressurizing the system and not cutting out when pressurized.  I confirmed 
there was water in the tanks and flow to the manifold that controls tank 
choice.  But there was no water in the filter after the manifold and before the 
pump.  I removed the hose connecting the manifold/filter to the pump and when I 
sucked on it, I got water, so nothing appears blocked.  When I turned the pump 
on (Par-Max4), I could not feel any suction on the opening.  I presume these 
are self-priming pumps, so I should have felt some pull.  The pump is 30 years 
old, so I am presuming it is just dead, but wondering if there is any other 
scenario that might make it not work before I replace it.  Thanks- Dave

S/V Aries
1990 C 34+
New London, CT



--
Sent from Gmail Mobile

Stus-List Re: Fresh water pump dead?

[David Knecht via CnC-List]

I took the old one apart and have no idea how it works.  Certainly had no 
impeller so I am presuming diaphragm.  I have installed a newer model of the 
same Jabsco pump.  In their infinite wisdom, they changed the mounting bracket 
size slightly so only two of 4 holes lined up.  That is almost as annoying as 
Standard Horizon, who sets the standard for this by using a different and 
incompatible charging base with each model of VHF handheld radio.  Had to drill 
the other two which was remarkably awkward in the tight space.  Fortunately I 
have a very small portable drill which made it possible. When assembled, it 
definitely generated vacuum on the inlet unlike the other pump.  It seems to be 
generating water pressure now, but is not switching off when reaching cut off 
pressure.  I am guessing that there is an air leak in the inlet side as there 
is no water leaking anywhere I could find.  I did not have time to clean all 
the threaded PEX? fittings which were wrapped with teflon tape and looked 
pretty nasty.  I will take those apart and rewrap them and assemble and see if 
that fixes the problem when I get back to the job.  Dave

S/V Aries
1990 C 34+
New London, CT



> On Aug 12, 2022, at 3:02 PM, dwight veinot via CnC-List 
>  wrote:
> 
> Is it a diaphragm pump?  If so the diaphragm may be shot
> 
> On Wed, Aug 10, 2022 at 10:46 AM Bill Coleman via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
> Try taking it apart and cleaning the vanes. Sometimes they get crud in there.
> 
> Bill Coleman
> 
> On Mon, Aug 8, 2022 at 10:24 PM David Knecht via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
> Hi Folks- I found that my fresh water pump was running continuously today and 
> not pressurizing the system and not cutting out when pressurized.  I 
> confirmed there was water in the tanks and flow to the manifold that controls 
> tank choice.  But there was no water in the filter after the manifold and 
> before the pump.  I removed the hose connecting the manifold/filter to the 
> pump and when I sucked on it, I got water, so nothing appears blocked.  When 
> I turned the pump on (Par-Max4), I could not feel any suction on the opening. 
>  I presume these are self-priming pumps, so I should have felt some pull.  
> The pump is 30 years old, so I am presuming it is just dead, but wondering if 
> there is any other scenario that might make it not work before I replace it.  
> Thanks- Dave
> 
> S/V Aries
> 1990 C 34+
> New London, CT
> 
> 
> 
> -- 
> Sent from Gmail Mobile

Stus-List Re: Fresh water pump dead?

[dwight veinot via CnC-List]

Is it a diaphragm pump?  If so the diaphragm may be shot

On Wed, Aug 10, 2022 at 10:46 AM Bill Coleman via CnC-List <
cnc-list@cnc-list.com> wrote:

> Try taking it apart and cleaning the vanes. Sometimes they get crud in
> there.
>
> Bill Coleman
>
> On Mon, Aug 8, 2022 at 10:24 PM David Knecht via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> Hi Folks- I found that my fresh water pump was running continuously today
>> and not pressurizing the system and not cutting out when pressurized.  I
>> confirmed there was water in the tanks and flow to the manifold that
>> controls tank choice.  But there was no water in the filter after the
>> manifold and before the pump.  I removed the hose connecting the
>> manifold/filter to the pump and when I sucked on it, I got water, so
>> nothing appears blocked.  When I turned the pump on (Par-Max4), I could not
>> feel any suction on the opening.  I presume these are self-priming pumps,
>> so I should have felt some pull.  The pump is 30 years old, so I am
>> presuming it is just dead, but wondering if there is any other scenario
>> that might make it not work before I replace it.  Thanks- Dave
>>
>> S/V Aries
>> 1990 C 34+
>> New London, CT
>>
>>
>> --
Sent from Gmail Mobile

Stus-List Re: Fresh water pump dead?

[Bill Coleman via CnC-List]

Try taking it apart and cleaning the vanes. Sometimes they get crud in
there.

Bill Coleman

On Mon, Aug 8, 2022 at 10:24 PM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> Hi Folks- I found that my fresh water pump was running continuously today
> and not pressurizing the system and not cutting out when pressurized.  I
> confirmed there was water in the tanks and flow to the manifold that
> controls tank choice.  But there was no water in the filter after the
> manifold and before the pump.  I removed the hose connecting the
> manifold/filter to the pump and when I sucked on it, I got water, so
> nothing appears blocked.  When I turned the pump on (Par-Max4), I could not
> feel any suction on the opening.  I presume these are self-priming pumps,
> so I should have felt some pull.  The pump is 30 years old, so I am
> presuming it is just dead, but wondering if there is any other scenario
> that might make it not work before I replace it.  Thanks- Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
>

Stus-List Re: Fresh water pump dead?

[Chris Riedinger via CnC-List]

Checking breakers or fuses

Any connections made - any corrosion in there? Are you getting
(batteryV+)12v or only 10.2 indicating a possible short

Our water pump, which I believe was the original, just died last year and I
swapped it out. I wish I had done that sooner, the new pump is both quieter
and uses less aH



Swaloon 37/40+

On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> Hi Folks- I found that my fresh water pump was running continuously today
> and not pressurizing the system and not cutting out when pressurized.  I
> confirmed there was water in the tanks and flow to the manifold that
> controls tank choice.  But there was no water in the filter after the
> manifold and before the pump.  I removed the hose connecting the
> manifold/filter to the pump and when I sucked on it, I got water, so
> nothing appears blocked.  When I turned the pump on (Par-Max4), I could not
> feel any suction on the opening.  I presume these are self-priming pumps,
> so I should have felt some pull.  The pump is 30 years old, so I am
> presuming it is just dead, but wondering if there is any other scenario
> that might make it not work before I replace it.  Thanks- Dave
>
> S/V Aries
> 1990 C 34+
> New London, CT
>
>
>