HI Dave,
Not for nuthin' but, if you can hear the the vent, it is restricted and
won't be letting much air in unless there is a vacuum like the one
created by the pump. Mine was the same way when I bought my boat so I
added a second and enlarged the first using 1-1/8 SS thru hull fittings
and hose. was not that big a job. also the waste hose could be a big
source of smells from the system. I replaced all those as well. no
oder at all on our boat!
The larger vents and thru hull also allow me to flush the system at
pumpout with fresh water running into the system through the vent
opening and get the tank nice and clean.
Danny
On 8/14/2016 7:45 PM, Syerdave--- via CnC-List wrote:
Thanks Paul, you've got me thinking....
I know the vent works because the guy who did the last pump out
commented that he liked the location because he could hear the vent.
So, it is admitting some air, but day in day out, not a lot because it
can't circulate.
Any reason you can think of not to create a vented deck fill? Big
boats have big vents... Same thing, I would think.
This may not solve the stench-permeated tank issue, but it would air
the tank.
Dave.
From: Dreuge <dre...@gmail.com <mailto:dre...@gmail.com>>
To: CnClist <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>>
Subject: Re: Stus-List Guidance required on Sewage hose type - LF38
NOW Active holding tank vent
Message-ID: <47519851-9d14-4693-b61f-cc574a8f1...@gmail.com
<mailto:47519851-9d14-4693-b61f-cc574a8f1...@gmail.com>>
Content-Type: text/plain; charset=us-ascii
Dave,
From what all the experts say, using quality hose and having proper
ventilation are main keys. A real eye opener for me was finding
a bug nest clogged air vent line, so at the very least check or
replace your vent line. To be honest, I cannot make any claims that
adding the
active ventilation fixed any problems as the system was be newly
installed so there was no problem to fix. But at such a small
cost ~$25, it was a no brainer to install a system which constantly
pumps fresh air into the holding tank. I thought briefly about
getting a
12V air pump, but if I were to make any changes it would be to plumb
the galley sink drain to the head inlet so that when I leave the boat
for an extended period,
the head inlet could easily be flush with fresh water. This
eliminate salt water organisms from the inlet line which die off in
the line and decay, without oxygen, anaerobically.
-
Paul E.
1981 C&C 38 Landfall
S/V Johanna Rose
Carrabelle, FL
http://svjohannarose.blogspot.com/
On Aug 14, 2016, at 11:01 AM, cnc-list-requ...@cnc-list.com
<mailto:cnc-list-requ...@cnc-list.com> wrote:
Message: 1
Date: Sun, 14 Aug 2016 08:32:27 -0400
From: Dave Syer <syerd...@gmail.com <mailto:syerd...@gmail.com>>
To: "dre...@gmail.com <mailto:dre...@gmail.com>" <dre...@gmail.com
<mailto:dre...@gmail.com>>, C&c Stus List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>>
Subject: Re: Stus-List Guidance required on Sewage hose type - LF38
NOW Active holding tank vent
Paul ? great blog, lotsa detail. You have piqued my curiosity with
your active holding tank vent project. I have a rather ?piquant?
poly holding tank in my 33-2. I changed the in and out (but not the
vent) hoses and still I get a stench, particularly when the adjoining
lockers are opened. The tank itself was removed and repaired, and
while out it could not be de-stinked by any means I attempted, bleach,
etc. Maybe there?s a way to deal with that, dunno.
Am considering replacing the tank, but would rather resolve the cause.
(or do both, and make provision for better/active ventilation in the
new tank)
In your post below, you seem pretty pleased with the result, any other
insights? Anything you would do differently?
Dave
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This list is supported by the generous donations of our members. If you like
what we do, please help us pay for our costs by donating. All Contributions are
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