2" stack vent for 6 bathroom groups 2 washer machines

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by yngwie_69, Feb 23, 2012.

  1. yngwie_69

    yngwie_69 New Member

    Joined:
    Sep 8, 2009
    Location:
    Prince Rupert, BC
    My boss asked me to do this in a small appartment building.... This just seems wrong.

    Am i safe with two 2" stack vents... 3 groups per vent
     
  2. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    It depends on how your code is written and what its parameters are. If you code requires that the vents out the roof have the save AREA as the incoming sewer, then you would need four 2" vents, but you also have to know what your code's limits are as far as fixtures connected to a 2" vent. I think one of these two requirements will negate just two vents.
     
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