What's the difference between a Vent Tee and a Waste Tee?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by El Dorado, Oct 12, 2005.

  1. El Dorado

    El Dorado New Member

    Joined:
    Oct 12, 2005
    I need to lower (6 inches) the drain pipe under my kitchen sink because it is to high to accomodate my batch feed disposal. I went to the store to pick up some fittings, but wasn't sure which tee to get, so I got both. Does it matter which one I use?
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    [​IMG]

    If you are lowering the kitchen drain, and the drain is vertical, you would use a Sanitary Tee.
    [​IMG]
    Sanitary Tee

    A Santary Tee Wye would not be used in the vertical position for venting. It would create an "S" trap in that position.
     
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    tees

    A true "vent" tee, or elbow for that matter, will have square corners for its turns, without even the minimal sweep that a sanitary tee has.
     
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