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Thread: Kitchen Sink Vent Issue

  1. #1
    DIY Junior Member obrien234's Avatar
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    Default Kitchen Sink Vent Issue

    I've got a kitchen sink that I believe isn't venting correctly and my current plan is to install a separate vent line for the kitchen sink to fix it. I'm hoping someone can confirm my diagnosis before I go and have someone mess with the plumbing. Here's a few facts about the apartment/house:

    • Apartment is the first floor of a duplex house, with the unit above having a kitchen right above ours.
    • The issue does not correlate with use of our sink (it can happen right after I use the sink, or hours after it has been used)
    • The issue does seem to lightly correlate with when the folks upstairs use their sink.
    • Looking at the pipes it seems that the sink just vents up the stack to the kitchen on the second floor and doesn't have a separate line.


    Here's a video of the sink making the noise:

    http://youtu.be/save0M2rajk

    Last edited by Terry; 08-07-2013 at 08:29 AM.

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Default

    That's a venting issue.
    The quickest fix would be to add an AAV to your trap arm.

  3. #3
    In the Trades Tom Sawyer's Avatar
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    Default

    If it drains ok and doesn't smell, I'd probably leave it alone.
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

  4. #4
    DIY Junior Member obrien234's Avatar
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    Default

    Quote Originally Posted by Tom Sawyer View Post
    If it drains ok and doesn't smell, I'd probably leave it alone.
    Unfortunately it is rather loud and does kick out a bit of sewer smell. It looks like I'll give the AAV a shot and see how things go from there. Thanks for the quick replies!

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