Inserting a sanitary tee into existing stack that will not move

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by denikar, Apr 28, 2013.

  1. denikar

    denikar New Member

    Messages:
    13
    Location:
    Canton, MI
    I'm investigating how to insert a sanitary tee into an existing vertical 3" stack that will not budge at all (vertically). One of the discussions I found here suggested cementing the lower part of the santee and using a fernco fitting for the top part. Is this the recommended method or are there better alternate methods?

    Thanks,

    Tim
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,010
    Location:
    Bothell, Washington
    Normally it takes two of these

    [​IMG]

    Notice the stainless steel wrap that prevents the pipe from shifting?
  3. denikar

    denikar New Member

    Messages:
    13
    Location:
    Canton, MI
    Thanks Terry
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,647
    Location:
    Cave Creek, Arizona
    If it does not move, there is no way you could "cement the bottom and use a transition coupling on the top", because you would have to cut out enough pipe to angle the Y in, then slide it down, and then whatever you are using would be too short to fill the gap.
  5. denikar

    denikar New Member

    Messages:
    13
    Location:
    Canton, MI
    To clarify, the cut stack can be moved enough in the x-y direction, just not up and down (z direction).
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