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Old 05-09-2016, 07:23 PM   #1
Join Date: Feb 2016
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New trailer, toilet bad odor

New trailer, have been traveling with trailer for 3 weeks, have dumped toilet about 6 times, put hose on built in sprayer to clean. Today when dumping in chemical and gallon of water, we got terrible smell from toilet , I know it is a toilet with black tank but this never happened in our old trailer. Also the gage always show 3/4 full, I know this happens but would sure like to sole the odor problem. Thanks.

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Old 05-09-2016, 07:57 PM   #2
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I found this product for the black tank treatment. This is the best I have used ( I used to use the pouches, liquids). I let the tank sit for 2 weeks with stuff in it and still had no odor. Give it a try. It cost a little more but I am sold. Happy Campers Organic RV Holding Tank Treatment - small jar, 18 treatments for RV, Marine, Camping, Portable Toilets: Automotive

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Old 05-09-2016, 08:17 PM   #3
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Is the black tank flush working properly? If you are flushing the black tank after each dump your gauges should have proper readings and there should be no smell from a new tank. We use the GEO method for odor control in the black tank.
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Old 05-09-2016, 08:22 PM   #4
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Being a new unit, there may be a faulty connection to the vent stack or the toilet.
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Old 05-10-2016, 11:13 AM   #5
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Our toilet was replaced free of charge due to an issue with the toilet allowing black tank smells passed the toilet.
Maybe look into that issue too
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Old 05-10-2016, 11:19 AM   #6
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I would check the vent stack first. It should be venting the smells out of the rv.
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Old 05-10-2016, 11:20 AM   #7
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Yeah, I don't think you should have a bad smell on a new unit. I'd suspect something with the vent or plumbing.
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Old 05-10-2016, 12:27 PM   #8
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Toilet smell

Just a thought , make sure that bathroom vent fan is not on as it will pull the stink up out of the toilet as soon as you hit the flush and open it. I think if you had a vent problem, when you went to dump it would not dump normal. I mean it would run out slower than normal. If your toilet drops straight into tank open it up , hold nose, look inside and stick tank if possible to make sure it really is empty. Good luck please let us know the outcome.
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Old 05-10-2016, 12:41 PM   #9
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+1 on the Geo Method.
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Old 05-10-2016, 12:42 PM   #10
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I had the same problem at the beginning of last season. I ended up removing the toilet and found that the closet flange gasket was pinched, thus allowing odors to come into the coach. I cleaned everything up sealed all possible areas that fumes could escape through, installed a new flange gasket and it solved the problem. DW has an extremely sensitive olfactory system and she is now happy.

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