There is another possibility to consider. In the case of my boat there were times when the level of the effluent in the tank was above the bowl in the tank. In my case the tank is transverse in the boat (head on the port side) and when on starboard tack the fitting on the port side of the tank is submerged and the effluent pressure goes back to the joker valve. The joker valves are never perfect and they will leak some. What I did is run a pipe through the tank from the head fitting in the tank to the opposite side of the tank, so the fitting is on the port side but the pickup is on the starboard side. Then when on starboard tack the effluent sloshes to port and the pickup is out of the effluent. When on port tack, the pickup is submerged, but is below the level of the head so it doesn't matter. That solved the problem for me. Does that description make any sense to anybody?
Gary S/V Expresso '75 C&C 35 Mk II On Thu, Sep 13, 2012 at 11:25 AM, Wally Bryant <[email protected]> wrote: > Yup, it's not just salt, but an extraordinary amount of excess minerals > are excreted through the kidneys (think about kidney stones,) and can build > up in the hoses and the tank as well. For the last couple of years I have > done an annual job of flushing a bunch of fresh water through the system, > and then pouring about four gallons of cheap white vinegar down the head. > I make sure some is in the bowl, and that the hoses are full of it. I let > it sit for a day or two, then flush the whole system with fresh water. > After that job I need to disassemble the pump and lubricate the O-rings > with silicone grease. > > This particular problem sounds like a bad joker valve, though. > > Wal > > > you wrote: > >> Salt from urine crystallizes on your joker valve >> and the joker valve leaks back. Ideally we are supposed to flush clean >> water thru but it never happens on the Great Lakes when you are trying >> to conserve holding tank space. >> > > > -- > s/v Stella Blue > www.wbryant.com > > > ______________________________**_________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > [email protected] > -- ~~~~~~~_/)~~~~~~
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