Oops sorry this should have been directed to Joel.

Mike
PERSUASION
C&C 37 K/CB
Long Sault

Begin forwarded message:

> From: Persuasion37 <persuasio...@gmail.com>
> Date: September 11, 2017 at 4:54:24 PM EDT
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Perko sea strainer failed - almost lost my boat!
> 
> Patrick
> 
> Those are massive hoses and through hull you have on your boat.  I'm thinking 
> the strainer top is 2" and the hoses are in the 1/2" range.
> 
> Mike
> PERSUASION
> C&C 37 K/CB
> Long Sault
> 
>> On Sep 11, 2017, at 1:51 PM, Joel Aronson via CnC-List 
>> <cnc-list@cnc-list.com> wrote:
>> 
>> Patrick,
>> 
>> Yes that's the unit.  The bolt with the wing nut failed.  The result was the 
>> equivalent of a 2 inch hole in the boat.  That's 80 gallons per minute.  
>> Luckily, I have a large bilge!
>> 
>> Joel
>> 
>>> On Mon, Sep 11, 2017 at 1:04 PM, Patrick Davin via CnC-List 
>>> <cnc-list@cnc-list.com> wrote:
>>> Yikes. Is it a Perko like this one?  
>>> http://www.perko.com/images/catalog/product/xl/Fig%200493%20(Top%20On).jpg
>>> 
>>> I'm having a hard time visualizing how a single bolt failure could result 
>>> in a hole big enough to outpace a 800 gph pump. 
>>> 
>>> Sounds like one of the wing nut bolts broke, but the other one was still 
>>> holding the lid torqued partially in place? Seems like a poor design. The 
>>> Groco design is nice because there's no way a threaded lid could 
>>> spontaneously fail - 
>>> https://fisheriessupply.scene7.com/is/image/FisheriesSupply/129443-groco-gro-arg-750-s-strainer-al1
>>> 
>>> Scary that it failed randomly rather than when you would expect a corroded 
>>> bolt to break (while torqueing the bolts during filter cleaning). 
>>> 
>>>> On Mon, Sep 11, 2017 at 7:59 AM, <cnc-list-requ...@cnc-list.com> wrote:
>>>> ---------- Forwarded message ----------
>>>> From: Joel Aronson <joel.aron...@gmail.com>
>>>> To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
>>>> Cc: 
>>>> Bcc: 
>>>> Date: Mon, 11 Sep 2017 10:24:34 -0400
>>>> Subject: Stus-List Perko sea strainer failed - almost lost my boat!
>>>> Yesterday as we were sailing back to the dock one of my crew yelled 
>>>> 'there's a lot of water down here'.  I opened the companionway steps and 
>>>> saw water coming out of the top of the sea strainer as the water was 
>>>> reaching the top of it.
>>>> 
>>>> I closed the seacock and we manned the manual pump.  Once the water was 
>>>> below the floorboards we let the electric do its job.
>>>> 
>>>> One of the arms that held the lid in place broke at the lower end.  
>>>> Luckily we were aboard and found the leak.  There was not excessive 
>>>> corrosion on the strainer, so I don't think the weakness could have been 
>>>> detected.  Time to re-think leaving seacocks open when I'm off the boat!
>>>> 
>>>> -- 
>>>> Joel 
>>>> 301 541 8551
>>> 
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>> 
>> 
>> 
>> -- 
>> Joel 
>> 301 541 8551
>> _______________________________________________
>> 
>> This list is supported by the generous donations of our members. If you wish 
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