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Old 07-30-2011, 10:45 AM   #1
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Smile Gray Water Smell

OK, another new RV'er question here. Our RV has been parked for a few months after a short trip which included a stop at the dump station (black and gray tanks ware dumped). Black water tank is serviced and no smell problems. The bathroom sink and kitchen sinks tell another story. When I remove the sink stoppers, the smell is very strong - a bit like onions or something along those lines. We don't put food down the kitchen drain so this is a bit of a surprise. Of course, the easy thing to do is to keep the stopper in place - yep, that sill stop it. But, can't do that forever. I'm looking for ideas or suggestions. The gray holding is almost empty since we dumped it in the spring.

Thanks for your help!


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Old 07-30-2011, 12:13 PM   #2
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Sounds like your goosenecks under the sinks are dry. A cup or two of water down the drains will create a water barrior and keep the onion smellies from offending your nose.

"If everything seems to be going well, look around, you've obviously overlooked something."
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Old 07-30-2011, 01:22 PM   #3
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Thanks - going over today to "filler up"!
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Old 07-30-2011, 05:45 PM   #4
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No doubt your traps are empty but you should treat your grey tanks...I put a half cup of javex into the gray tanks once a month and then the javex gets mixed with the water and kills all the bacteria. When you add the javex be sure to add about a gallon of water with it. Presto, no more odors..but...keep your traps full of water as well.
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Old 08-01-2011, 02:31 PM   #5
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Thanks for that tip - wondered about a treatment for the gray tank!
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Old 08-05-2011, 07:35 AM   #6
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Don't forget your shower drain as well. If your RV is going to sit for quite a while use some of the Pink anti-freeze to fill the traps. It won't evaporate like water will over time. When ready to use the water will send the anti-freeze to the tank.


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