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Thread: Urine smell coming from toilet

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  1. #1
    DIY Junior Member justinweible's Avatar
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    Default Urine smell coming from toilet

    This may sound odd, but I have a urine smell coming from my toilet... Before you ask, yes it is clean. Each time that I clean the toilet it will go away for about a day, but then it is back, even if the toilet is not used. My father in law told me it could be the wax ring, but wanted to check and get some other opinions. Any thoughts?

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    Test, Don't Guess! cacher_chick's Avatar
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    If the wax ring has ever leaked, the liquids soak into the wood subfloor. Even after the wax ring is replaced, the smell is still in the subfloor.

    Usually when I smell urine, I suspect there is or has been a cat in the house.

  3. #3
    DIY Senior Member SteveW's Avatar
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    No, this doesn't sound odd at all - actually a common problem, which I and many others have had.

    A common problem is poor aim by males in the house, leading to small amts of urine going under the front of the toilet. If you a) have males in the house and b) have an uncaulked front of the toilet, I bet that's the problem.

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    Retired Defense Industry Engineer jadnashua's Avatar
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    Caulking around the toilet does a couple of things: helps to anchor it to the floor, and prevents stuff from wicking underneath where it is tough to impossible to clean. Most codes want to see the back side left open to assist in quickly identifying a seal leak.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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    DIY Junior Member cwooden82's Avatar
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    Another culprit could be urine under the seat hinges. On my old toilet no matter how much I scrubbed there was always a smell. When I got my new Toto I bought an easy-off seat - even if the boys are being careful it seems urine always seem to wick up under those hinges - with this seat its easy to get the whole thing really clean.

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    DIY Junior Member goldenpeak's Avatar
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    Question Urine under toilet - Subfloors

    HI! I have the same problem a urine odor but I do have boys with bad aim! I clean it and even though they do not use it the odor is back the next day! I found out that if you clean then mist with hydrogen peroxide it takes odor out significantly. Everyone says it is from the urine seeping into the sub floor. My toilet was not caulked and I am not handy but I am going to attempt to change the wax ring with this sites insight! wish me luck! I will probably drop and break my toilet and have to call a plumber anyway! but at least I tried! My question is "what do I do about the odor in the SUBFLOOR?" "How do you get the urine smell or the urine out?"

    Thanks

  7. #7
    DIY Junior Member goldenpeak's Avatar
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    Question Urine under toilet - Subfloors

    HI! I have the same problem a urine odor behind my toilet, but I do have boys with bad aim! I clean it and even though they do not use it the odor is back the next day! I found out that if you clean, then mist with hydrogen peroxide it takes odor out significantly. Everyone says it is from the urine seeping into the sub floor. My toilet was not caulked and I am not handy, but I am going to attempt to change the wax ring with this sites insight! Wish me luck! I will probably drop and break my toilet and have to call a plumber anyway! At least I tried?! My question is "What do I do about the odor in the SUBFLOOR?" "How do you get the urine smell or the urine out?"

    Thanks

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