sink sewer gas with p trap

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by kevincw01, Apr 1, 2014.

  1. kevincw01

    kevincw01 New Member

    Messages:
    20
    Location:
    san diego, ca
    Bought a house a 6 months ago and noticed that 1 of the bathroom's sink emits sewer gas odor when we use the sink. There is a p-trap installed and it appears to be installed correctly but i took a photo to show the experts. I have noticed that if we're gone for the weekend and then use the sink, the gas is worse than when it's used morning/night. Also, the sink drain doesn't have a stopper installed -- previous owner must have removed it. Any ideas would be appreciated. 20140330_155547.jpg


    p.s. yes, I asked the mermaid if she knew what was going on but she claimed ignorance.

    -Kevin
  2. asktom

    asktom Member

    Messages:
    519
    Location:
    Victor, MT
    It may be overflow in the lav that is the problem, the trap is fine. If it was a trap problem it would smell when it wasn't being used.

    When you change the faucet be sure to change those angle stops, the risers are prone to cracking if wiggled. Tell that mermaid there is no swinging on the risers.
  3. kevincw01

    kevincw01 New Member

    Messages:
    20
    Location:
    san diego, ca
    Hi tom, thanks for taking the time to answer. I feel stupid but I don't know what you mean by "overflow in the lav". Can you expand a bit?
  4. dj2

    dj2 Member

    Messages:
    399
    Location:
    California
    The overflow is a drain hole in the upper section of your sink, that stops your sink from over flowing.

    Sometimes a dry overflow will emit odor. Solution: pour some bleach in it.
  5. Gib

    Gib New Member

    Messages:
    9
    Location:
    IL
    Your trap might not be vented. Hence the trap is losing its seal do to air movement in piping system.
Similar Threads: sink sewer
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & bad sewer odor from sink Apr 7, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Kitchen sink drain / trap / vent issue. Sewer smell, glug glug, etc. Oct 4, 2013
Plumbing Forum, Professional & DIY Advice, Tips & How can I add a basement utility sink what will be below the main sewer discharge? Nov 30, 2010
Plumbing Forum, Professional & DIY Advice, Tips & Sewer smell from under sink and adjoining closet, but not from drains? Aug 29, 2009
Plumbing Forum, Professional & DIY Advice, Tips & Sewer Smell in Top Floor Sink Jun 13, 2008

Share This Page