kohler shower drain installation

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by dkkll, May 7, 2011.

  1. dkkll

    dkkll New Member

    Messages:
    5
    Location:
    New York
    installing a k-9135/k-9136 drain in my new shower
    the rough in guide does not state the size of the whole to be cut in the subfloor
    i am not sure if the flange is supposed to sit on the bottom of the 4 screw bases or on the rim around the flange
  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,259
    Location:
    Land of Cheese
    k-9135.jpg

    Kohler Drain
    Last edited by a moderator: May 7, 2011
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,034
    Location:
    Cave Creek, Arizona
    The top of the "flange" is even with, or slightly below, the subfloor/mortar preslope. Then the safety membrane is laid onto the sloped mortar base and clamps between the two pieces, usually with a bead of silicone to make a better seal.
  4. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,348
    Location:
    Cincinnati OH
    And it is always good to bevel the sub floor to fit the shower drain.Not just a hole cut in the sub floor.
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