Can a 2" DWV WC vent also be used to vent a 1-1/2" basin drain?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by bergmanj, Oct 29, 2012.

  1. bergmanj

    bergmanj New Member

    Joined:
    Oct 29, 2012
    Location:
    Duluth MN
    Folks,

    Brand new poster here.

    Spouse and I are building a new retirement residence.

    I'm doing the DWV work.

    Can a 2" DWV WC vent (PVC - all the way to attic vent manifold) also be used to vent a 1-1/2" basin drain (combined into from basin 6+ inches above basin flood rim)? Or, must the basin vent be run seperately to the attic vent manifold (4")?

    Regards, JLB
     
  2. MASTERPLUMB777

    MASTERPLUMB777 In the Trades

    Joined:
    Aug 6, 2007
    Occupation:
    Retired Master Plumber
    Location:
    Texas
    Yes it can !

    [​IMG]

    Two bathroom groups with one 2" vent
     
    Last edited by a moderator: Oct 29, 2012
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  4. bergmanj

    bergmanj New Member

    Joined:
    Oct 29, 2012
    Location:
    Duluth MN
    777,

    Thank you.

    Regards, JLB
     
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