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 Catalina 25 Specific Forum
 Head Flush Problems		  New Topic  Topic Locked
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padobrog@wi.rr.com
Deckhand

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USA
1 Posts
Initially Posted - 04/24/2004 :  20:14:52  Show Profile
When we use the head on our 1982 Catalina 25, we cannot draw water from the lake. There is no problem pumping the head dry. The Inlet Water Lever is in the proper position.

When I discussed this problem with the marina, they said that the problem is that, because the head sink drain is connected to the same seacock, air is being drawn in from the sink drain rather than water from the lake. Although this sounds plausable, I cannot believe that Catalina wouldn't have corrected this condition by the time they built my boat(#3337).

Anyone have any solutions to this problem?
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 04/24/2004 :  20:35:24  Show Profile
Was the head a factory installation ?

Indeed... the pump can't pull water with an air-break in the inlet line. Put a valve in the sink drain and it should work.
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 04/24/2004 :  21:59:29  Show Profile  Visit Leon Sisson's Homepage
As an experiment, try dumping a quart or two of water down the sink while flushing, and see if it helps. If that's better, then try putting a stopper over the sink drain when flushing, and see if that is a workable solution for you. There are advantages to having the head intake T'ed to the sink drain, so I'd try to get it to work that way.

On my boat, I leave that seacock closed on short trips (a weekend or less), and flush with fresh water from the tanks by running the head sink faucet. If you combine flushing this way with hand washing, there's not much water wasted in the process. On longer trips with the seacock open, I put a stopper in the sink drain and/or pump slower to reduce sucking air into the head supply hose. A little air isn't a problem, it just takes more pump strokes per flush.

-- Leon Sisson
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aeckhart
Master Marine Consultant

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USA
1709 Posts
Response Posted - 04/26/2004 :  17:51:11  Show Profile  Visit aeckhart's Homepage
Your intake flapper valve may be stuck. Try opening the plate under the pump handle. There should be two flapper valves - rubber with metal discs attached. Sometimes these will stick to the housng if not serviced regularly. I coat mine with vasoline annually and haven't had a problem.

Al
C25T #5801
GALLIVANT
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.