Quick question about shower drain...

Discussion in 'Shower & Bathtub Forum & Blog' started by BRADO, Jul 18, 2013.

  1. BRADO

    BRADO New Member

    Messages:
    3
    Location:
    Ontario Canada
    Hi all, I'm in Ontario Can. not sure what code calls for (think 2") but have found my basement shower drain is plumbed with 1-1/2" ABS for the drain...I'm starting to finish the bathroom now and am at the shower install. OK if I use a 2.5 GPM showerhead?? I know it will drain slower but hope not to stand in water while showering.

    Thanks,
    Brad
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,258
    Location:
    New England
    From comments here, I think 1.5" on a shower is still code in Canada. With one showerhead and proper slope, it should be okay.
  3. BRADO

    BRADO New Member

    Messages:
    3
    Location:
    Ontario Canada
    Thats what I thought but doesn't hurt to ask thanks, for your help Jim.
    Brad
  4. johnfrwhipple

    johnfrwhipple Bathroom Design & Build - North Vancouver, B.C.

    Messages:
    4,678
    Location:
    North Vancouver, BC
    2.5 GPM is nothing. Do you know the water level drop from the top of the basement floor to the level of water in the P-Trap? If you have 5"-8" you could easily run 12-14 GPM down that line. I would not be worried about having a couple fixtures on your 1.5" line at all. JW
  5. BRADO

    BRADO New Member

    Messages:
    3
    Location:
    Ontario Canada
    Hey John, the difference is about 4", tricky to be exact as to see where the level is in the riser but no more than 4" up to the floor, with the 2 layers of motar, membrane and tile prob. be 6" to top of drain (shluter).
    Thanks,
    Brad
  6. johnfrwhipple

    johnfrwhipple Bathroom Design & Build - North Vancouver, B.C.

    Messages:
    4,678
    Location:
    North Vancouver, BC
    The Schluter drain has a nice angled sides (inside) and has a high flow rate for standard drains. 4"-6" is average and all good.
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