toilet drain pipe size

Discussion in 'Toilet Forum discussions' started by rdboi, May 19, 2005.

  1. rdboi

    rdboi New Member

    Joined:
    May 19, 2005
    can someone tell me how many toilets can be drained to a 3" abs pipe before the pipe has to be sized up?
     
  2. hj

    hj Moderator & Master Plumber Staff Member

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

    3 on 3", but once you add a fourth toilet it has to be increased to 4" at that point. Once you increase to 4" you can put more toilets on it than you probably need, or can use.
     
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