Stus-List Oft overlooked source of head odor

Shawn Wright shawngwright at gmail.com
Sat May 25 13:04:49 EDT 2019


I like the idea of adding a tee in the sink drain for a fresh water flush -
thanks!
--
Shawn Wright
shawngwright at gmail.com
S/V Callisto, 1974 C&C 35
https://www.facebook.com/SVCallisto


On Sat, May 25, 2019 at 9:13 AM Dreuge via CnC-List <cnc-list at cnc-list.com>
wrote:

> I have seen heads discharge loops vented with a small hose led to an
> external vent.  Some were with inline check valves but some without.   The
> later was more common for anti-siphon at the raw water to exhaust mixing
> below.
>
> I thought about added a hose to my head discharge loop if it became a
> problem.   The longer the little rubber valve work, the more likely I’ll
> replace it as Dennis has done.
>
> The only head odor problem I have had was due to stagnate seawater in the
> inlet to head.   I fixed this by teeing the head inlet to the head sink
> drain.  When I leave the boat for an extended period, I now close off the
> seacock, fill the sink with some fresh water, and pump it through the
> head.  No more stench.
>
>
> -
> Paul E.
> 1981 C&C Landfall 38
> S/V Johanna Rose
> Fort Walton Beach, FL
>
> http://svjohannarose.blogspot.com/
>
> On May 24, 2019, at 12:00 PM, cnc-list-request at cnc-list.com wrote:
>
> Date: Fri, 24 May 2019 09:08:21 -0500
> From: "Dennis C." <captbuy at gmail.com>
> To: cnc-list at cnc-list.com
> Subject: Re: Stus-List Oft overlooked source of head odor
> Message-ID: <1920A42C-7848-4BBC-BB20-C9D5985FDF08 at gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> The anti-siphon valve on the vented loop is usually not routed anywhere.
> It just sits on the top of the loop.
>
> It?s different from the tank vent.
>
> Dennis C.
>
>
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