I have a smelly bathroom, I changed toilet seal and still had a smell its is not real bad just enough odor for DW to let me know. Made sure sink trap has water but still have the smell. Toilet does have water in it at all times. Floor and every inch has been cleaned a lot of times. ( HELP) Bsport❚ Did you see "Announcement : &bigstar;&bigstar;READ BEFORE POSTING HERE&bigstar;&bigstar;" at the top? Forum Posting Help and Support is reserved for questions related to "posting" issues with Open Roads Forum sites, member profile and photo testing, and for reporting account issues. Please avoid using this forum for RV related questions, as doing so can delay responses to your thread. Instead, visit the RV Forum which corresponds to the subject of your topic, and click the Post New Topic link. Thank-you!Moved from FORUM POSTING HELP AND SUPPORT

I agree with K Charles, and also, if your venting up on the roof is inadequate (which is entirely possible with some rigs), air pressure changes or traveling winds can suck smells up past the seals and water.You don't tell us a thing about your RV so I'll assume it's really old and if it has those ol' timey domed covers for the vent pipes, I'd recommend those be replaced with a simple 'T' plumbing fixture from the bathroom department of Home Depot.

Make sure the shower has water in the pipe, too.

Air admittance valve found under the sink. You can replace it easily. Purchase new one from one of the big box stores. We got ours at Lowe's.

I have a Dometic 300 toilet. The bathroom started to smell like a gas station men's room. I finally removed the toilet and disassembled it. Turns out the toilet base is made in 2 pieces with a thin, square "O" ring between them. When the toilet was assembled at the factory, the "O" ring got twisted so it leaked. There was about a cup of black water trapped in the toilet housing. Cleaned it out and replaced the "O" ring CAREFULLY. Problem solved.

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bsport

Explorer

Apr 21, 2018

smell in bathroom

I have a smelly bathroom, I changed toilet seal and still had a smell its is not real bad just enough odor for DW to let me know. Made sure sink trap has water but still have the smell. Toilet does have water in it at all times. Floor and every inch has been cleaned a lot of times. ( HELP) Bsport

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13 Replies

LadyRVer
Explorer II
Apr 22, 2018
Make sure the shower has water in the pipe, too.
Jim
Explorer
Apr 22, 2018
I agree with K Charles, and also, if your venting up on the roof is inadequate (which is entirely possible with some rigs), air pressure changes or traveling winds can suck smells up past the seals and water.

You don't tell us a thing about your RV so I'll assume it's really old and if it has those ol' timey domed covers for the vent pipes, I'd recommend those be replaced with a simple 'T' plumbing fixture from the bathroom department of Home Depot.
K_Charles
Explorer
Apr 21, 2018
The vent thing under the sink.