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 Catalina/Capri 25/250 Sailor's Forums
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 Marine head plumbing schematic
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Dan Lamb
1st Mate

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USA
26 Posts

Initially Posted - 08/31/2010 :  10:19:57  Show Profile
I have a 2006 C250 WK with a (I think) factory installed marine head. We have been trying to find the cause of an odor most of the summer. My wife thinks its the head, but I'm not totally convinced. I have taken the gear out of all storage compartments on the entire boat and cleaned with disinfectant, dried them and re stowed the gear. I found a little liquid in the bilge, but after much investigation I think my thru-hull speed indicator in the bow was slightly loose and was allowing a small amount of water into the bilge. I have inspected all hoses from bow to stern and haven't found any moisture or indication of moisture. I have pumped out the holding tank and flushed it several times and pumped it out again and again until the fluid from the pump was completely clear. I then dumped in some "Odorless" (came highly recommended by a dock mate). We have always used some type of holding tank product for odors. My owners information shows the standard schematic for a porta potty not a marine head. I measured the holding tank and calculated the volume at 12.75 gallons. As far as I can tell there is a vent for the holding tank on the port side of the transom. My wife is very diligent about not leaving anything on the boat that left for a week would create an odor. I have shampooed the carpet a couple of times, but I don't think its the off gas of the cleaner. Would anyone have a plumbing schematic or any ideas for a solution? Any ideas would make the first mate a happy sailor and take the captain off the hook. Thanks

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SEAN
Admiral

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USA
772 Posts

Response Posted - 08/31/2010 :  15:01:24  Show Profile
the smell soaks through the hoses after awhile and need to be replaced .
i think a test is place a hot damp rag on the hose for 5 minutes ..
if you can smell it on the rag..its time to be done .

the odorless ..has to be used every week .

also if you use sea water to flush that also causes odors ..

good luck !

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Tradewind
Admiral

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USA
531 Posts

Response Posted - 08/31/2010 :  15:15:24  Show Profile
Replace the hose with the best sanitation hose you can find. It's somewhat expensive but well worth it, don't skimp on sanitation hose. At the time I installed my marine head and holding tank in 2006 I found Sealand Odorsafe hose was rated at the top, got it from Defender at $9/ft.

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Dan Lamb
1st Mate

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USA
26 Posts

Response Posted - 09/08/2010 :  07:11:03  Show Profile
Sean and Steve, thanks for the input. I'll try the hot wash cloth first and maybe replace the hose too. I'll let you know how it works out.

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