Hi Bob,
When I first bought Expresso in 1998 she had a small bladder tank for
the head. Ever since, it has been my mission to build a system that would
work properly; that is, no leaks, no smell and can't syphon when the
uninitiated left a valve in the wrong state. After many attempts and
changes, over the years, if feel I have accomplished my goal. I have
received many ideas from others including Peggy Hall (the head mistress)
and probably a few adult beverages along the way. I'm an engineer, not a
writer, so the fact that you could understand my babbling, speaks more to
your brilliance than mine. If you ever want additional details on my
system, just let me know.
Gary
S/V Expresso
'75 C&C 35 Mk II
On Thu, Sep 13, 2012 at 7:29 PM, Helen Abbott <[email protected]> wrote:
> Gary:
> It's been a long day, and maybe, the effects an adult beverage has
> provided me with an induced state of brilliance, so after reading your
> description of your on board 'plumbing system', to avoid unweIcomed
> effluent backup in the head, I completely understand.....quite brilliant
> really!
>
> Bob Abbott
> AZURA
> C&C 32 - 84
> Halifax.N.S.
>
>
> On 2012/09/13 5:13 PM, Gary Russell wrote:
>
> 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
>>
>>
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>
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