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Old 09-08-2020, 05:02 PM   #1
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Odor from sink

There is an odor coming up through my kitchen sink drain. No smells in the cabinet under the sink. Does this mean that my p trap is not working properly?
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Old 09-08-2020, 05:38 PM   #2
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P trap may be empty and also your Gray tank must be dirty it you smell it.
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Old 09-08-2020, 10:16 PM   #3
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Quote:
Originally Posted by TheWolfPaq82 View Post
P trap may be empty and also your Gray tank must be dirty it you smell it.
I’ve tried cleaning it. But seems to me that even if the tank smells, the odors shouldn’t be able to get past the p trap.
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Old 09-09-2020, 03:41 AM   #4
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Almost all RV kitchen stinks are double-bowl sinks with the two bowls connected together with what is called a continuous waste. There is a good amount of pipe between the trap and the strainers in the bowls. These sections of pipe, especially when they have very little slope, are subject to bacterial growth which can really stink when the scum and bacteria begin to build up in them. I’m a plumber, so I deal with this smell problem for customers several times per month. Depending on how the continuous waste is installed, I will either take it apart and clean it all out or I will just install a new one. I prefer to install new ones because it is a really nasty job cleaning them out most of the time. Every RV continuous waste I have seen is very simple and put together using 1-1/2” CTS slip joint pipe and fittings.

This isn’t something you can just take care of by pouring something down the drain — you must take it apart and clean it out or replace it.

I pay about $8.00 at the supply house for a complete 1-1/2” CTS slip joint polyethylene continuous waste.

Bruce
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Old 09-09-2020, 07:58 AM   #5
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Thanks Bruce! This is very helpful. I will follow your suggestions.
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