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Old 10-06-2018, 18:43   #1
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Sealands Tank Savor relief valve and odors

Installed one of these over the winter during a complete boat makeover. Holding tank was removed and completely cleaned. All new sanition/vent hoses, new Vacuflush toilet, vacu pump, joker valves, etc....In otherwords, only the tank has not been replaced. Boat was put in the water 2 weeks ago and used for 3 days then. Went back down 3 days ago and there was an odor in the cabin that all could think of the source was from the Tank Savor valve. My plan is to install a PVC pipe/cap in place of it to diagnose. I see so many of these tank coming with this valve installed so I feel it cant be a common problem. Has anyone ever had this valve that wasn't completely sealing the tank odors in, and how was it corrected? Thanks
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Old 11-06-2018, 08:40   #2
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Re: Sealands Tank Savor relief valve and odors

It is a common problem--and IMO the worst idea SeaLand ever came up with because it doesn't allow a tank to "breathe," which is the key to prevention holding tank odor (odor out the vent).

However, you're saying that the whole cabin stinks, so it may not be the source of your odor. A little investigation is needed before trying to "fix" it. Odors are always strongest at their source. So next time you come aboard, first go straight to the tank and stick your nose there. If it's really strong there, then the pressure relief valve IS the source....but it may not be the valve itself. You self-installed it in a PE tank, so you may not have sealed it correctly. If that's not where it seems to be strongest, it could be residual odor left from the hoses you replaced....or it may not have anything to do with your sanitation system. A wet dirty sump or bilge can make a whole boat smell like a swamp or even a sewer. Or there could be trapped water somewhere that's stagnated...that can also make a whole boat smell like a sewer.

Once you've located the source, eliminating the odor is actually pretty easy, though it may require a bit of manual labor. Let me know what you find.

"If you can't explain it to a six year old, you don't completely understand it yourself." --Albert Einstein
2019 Peggie Hall
Specializing in marine sanitation since '87.
Author "The NEW Get Rid of Boat Odors"
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