Kent,

Do you have a Jabsco electric toilet with the water coming from the manifold via a pump from the engine room? That is how my SM 376 is arranged.

Fair Winds,

Eric

----- Original Message -----
From: "Kent Robertson karkauai@... [amelyachtowners]"
Date: Monday, September 12, 2016 9:56 am
Subject: Re: [Amel Yacht Owners] Re: Joker Valve
To: amelyachtowners@...

> Hmmm. That's on the intake side, the joker valves being on the
> output side. I have a strainer between the stopcock and the
> pump. I'll have to look to see if it has a one way valve as well.
> Thanks.
> I have made a practice of filling the head with fresh water
> every few months or when ever I leave the boat for a week or
> more, and putting some vegetable oil in before flushing it down.
> I read somewhere that it helps keep the joker valves supple. I
> also ask the crew to flush for a good 10 seconds after using the
> head to get all debris and urine out of the discharge pipe. I
> have to change joker valves about twice a year with this regimen.
> Kent
> SM243
> Kristy
>
> Kent Robertson
> karkauai@...
> 828-234-6819 voice/text
>
> On Sep 12, 2016, at 9:35 AM, Ian Park parkianj@... 
> [amelyachtowners] wrote:
>
> On the hose from the sea cock. It is usual to have a loop in the
> flexible pipe taking it above the heeled water line. There is
> usually plastic 'u' bend clamped on to the up and down pipes to
> form the u shape. This bend should have a small screw cap (like
> a car tyres valve). Inside is a tiny rubber non return valve. It
> allows air into the pipework to prevent the motion of the boat
> pumping sea water back up the pipe until it siphons back into
> the toilet.
>
> Ian
>
>