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Thread: Sewer Gas Smell

  1. #1
    Join Date
    Dec 2010
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    1

    Default Sewer Gas Smell

    We smell sewer gas under our kitchen sink perodically. Sometimes it is strong other times weak. Season seems not to be a factor. We have a dish washer and a disposal. We have a double sink so there are two drains going into a single at the wall. The dishwasher drain goes into the disposal - we rarely use the disposal and it disperses a bio agent each time it is used - this does not seem to have a smell. All pipes appear to be secure. We have tried bleach, etc but seems only to be a temp. solution. What could possibly be the source? See attached photo of our piping config. under our sink.
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  2. #2
    Join Date
    Mar 2009
    Posts
    1,387

    Default Re: Sewer Gas Smell

    Howdy is the small after using the disposal? Been reading that too much water force in the pipe can allow the p trap to be drained below the level of water to stop air from the sewer to come into the home.

  3. #3
    Join Date
    Dec 2008
    Location
    Midwest
    Posts
    158

    Default Re: Sewer Gas Smell

    It looks like there might be a quick vent on top of that drain line. I would check that. it could be faulty

  4. #4
    Join Date
    Dec 2010
    Posts
    12

    Default Re: Sewer Gas Smell

    this problem only can be solve by Gas providing company they will see it and may be your joints are leaked

  5. #5
    Join Date
    Mar 2009
    Posts
    1,387

    Default Re: Sewer Gas Smell

    Howdy, Yor12ks i think you got this one confused, Gas company not needed but a plumber most likley...

  6. #6
    Join Date
    Mar 2010
    Location
    Canada
    Posts
    86

    Default Re: Sewer Gas Smell

    Quote Originally Posted by mindless35 View Post
    We smell sewer gas under our kitchen sink perodically. Sometimes it is strong other times weak. Season seems not to be a factor. We have a dish washer and a disposal. We have a double sink so there are two drains going into a single at the wall. The dishwasher drain goes into the disposal - we rarely use the disposal and it disperses a bio agent each time it is used - this does not seem to have a smell. All pipes appear to be secure. We have tried bleach, etc but seems only to be a temp. solution. What could possibly be the source? See attached photo of our piping config. under our sink.
    One thing to consider is the drain hose from the dishwasher is incorrect. It should be up higher than the sink flood level. The way it's sitting low is allowing water to siphon back in the that low point. Looking at your picture it looks as though that low spot is discoloured indicating standing water.
    Also, I'll bet there's more stuff in that space under the sink than the picture shows. If items are crammed in that space it's probably pushing against that hose and causing it to sit lower yet.
    If you really don't use the disposal ,consider removing it. That will clear up a lot of storage space.

  7. #7
    Join Date
    Jan 2011
    Posts
    11

    Default Re: Sewer Gas Smell

    A candle is best solution of this problem

  8. #8
    Join Date
    Feb 2011
    Posts
    10

    Default Re: Sewer Gas Smell

    I agree there is leakage osme where or some point is loose check it yorself or call some plumber

  9. #9
    Join Date
    Nov 2009
    Posts
    71

    Default Re: Sewer Gas Smell

    Well you say you hardly use the disposal so maybe that trap is drying out.

    Anyway, i think you have one too many traps there anyway.

    A single trap with both sink drains connected to it should fix this

    in my opinion.

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