1.5" vent and revent

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by lmei007, May 24, 2011.

  1. lmei007

    lmei007 Member

    Messages:
    156
    Location:
    Maryland
    My 1st floor tub drain has a 1.5" vent. I am thinking move and add a vent for my basement counter sink horizontal drain. Can I connect the planned vent to that 1.5" vent? thanks,
  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,891
    Location:
    Bothell, Washington
    You can connect the two vents together at 6" above the highest fixture flood level.

    [​IMG]
  3. lmei007

    lmei007 Member

    Messages:
    156
    Location:
    Maryland
    greate! thanks
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,491
    Location:
    Cave Creek, Arizona
    quote; You can connect the two vents together at 6" above the highest fixture flood level.

    Technically, the requirement is 6" above the highest flood level OR 42" above the floor whichever is HIGHEST.
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