Advice for installing a shower base with an offset drain

Discussion in 'Shower & Bathtub Forum & Blog' started by cwilliams2000, Mar 28, 2013.

  1. cwilliams2000

    cwilliams2000 New Member

    Messages:
    10
    Location:
    Boston
    I have a partially finished basement bathroom with a 1.5" drain line stubbed out underneath the surface level on the concrete floor. All the work from there is done, goes into an ejector pump that the current working sink and toilet use. I was thinking, installing the shower will be easy but then I realized that the drain is not centered at all. I have thought my only option would be to have a base built from scratch to line up with the drain, but is there another option for this, like a slightly raised base with enough room to reach the drain?
  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,249
    Location:
    Land of Cheese
    Most prefab shower bases have the drain slightly recessed below the concrete floor. This is why a shower rough-in should leave a 12x12 area with no concrete around the drain. This also allows the position of the drain to be moved a bit as needed when the base is installed.

    I would cut 12-18" of concrete out around the drain and dig the trap out so it can be moved.

    If you are in the USA, I would question the installation further, as a shower drain and any pipe under grade is required to be a minimum of 2" pipe.
  3. cwilliams2000

    cwilliams2000 New Member

    Messages:
    10
    Location:
    Boston
    There definitely isn't 12" around it, but perhaps 8-10", I will check the size again since it may be 2" maybe I am wrong there. Thank you the reply though I will get a pic also
  4. Terry

    Terry Administrator Staff Member

    Messages:
    15,118
    Location:
    Bothell, Washington
    And make sure you have a p-trap, and a vent between the p-trap and any pumped basin.
  5. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,347
    Location:
    Cincinnati OH
    Shower drain must be 2 ".
Similar Threads: Advice installing
Forum Title Date
Shower & Bathtub Forum & Blog Need advice on installing tub faucets Nov 11, 2008
Shower & Bathtub Forum & Blog Need advice on installing a bathtub on uneven floor Oct 11, 2004
Shower & Bathtub Forum & Blog Basement floor drain move w broken PVC - advice needed Aug 30, 2014
Shower & Bathtub Forum & Blog DIY Shower Advice - What not to do and why.... Jul 31, 2014
Shower & Bathtub Forum & Blog I Need Advice Before I Tile Shower Jun 25, 2014

Share This Page