Code for a washer in Canada. Help me win (or lose) a bet.

Discussion in 'Canadian Plumbing Code Questions' started by E.M., Jan 6, 2020.

  1. E.M.

    E.M. New Member

    Jan 6, 2020
    Burlington, Ontario
    I moved my laundry room to the basement on or about 1999-2000. The house was built in 1985. Does anyone know the size requirement of a washing machine standpipe at that time (1999/2000)? I searched the Ontario Building Code changes and the closest to that time period was O. Reg. 403/97 (1997 OBC). Thanks
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    That is probably the one in effect at that time, and I would assume it required a 2" drain and minimum 1 1/2" vent.
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  4. WorthFlorida

    WorthFlorida The wife is still training me.

    Oct 28, 2009
    Orlando, Florida
    I think it was the late 1960's that the code changed to 2".
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