Drain Vent placement

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by dasadler, Jun 14, 2018.

  1. dasadler

    dasadler New Member

    Joined:
    Apr 9, 2015
    Location:
    California
    Hello all, new member here. I live in Southern California.

    We are going to have a bathroom moved from one interior part of the house to another part which will be against an outside wall.

    It was suggested that sink, shower, and toilet drains can be vented out the wall instead of through the roof.

    Does that sound right? If not, why not? (so I can make a convincing case)

    Thanks you,
    Don
     
  2. Sylvan

    Sylvan Still learning

    Joined:
    Sep 23, 2004
    Occupation:
    plumbing- - fire suppression
    Location:
    New York
    Only vent I know of through a wall is the fresh air inlet and the vent terminal is through the roof
     
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  4. asktom

    asktom Member

    Joined:
    Nov 9, 2009
    Location:
    Victor, MT
    Through the roof, that is the code. Actually, it could be run through the wall (at a 45 angle or 42" above the floor if a 90 is used), but you would need to then turn it up and run above the edge of the roof.
     
  5. fullysprinklered

    fullysprinklered In the Trades

    Joined:
    Jun 15, 2014
    Occupation:
    self-employed plumber-electrician doing residentia
    Location:
    Georgia
    As long as it's not being inspected, you can vent it up your mother in law's britches leg.
     
  6. MASTERPLUMB777

    MASTERPLUMB777 In the Trades

    Joined:
    Aug 6, 2007
    Occupation:
    Retired Master Plumber
    Location:
    Texas
    Unless you live in the Boonies it is against code people do not want to look at those nesty old pipes,
    I haven't seen any in So. CA. since back in the old days of the 70's on really old houses that were never built with in door plumbing,
    this is a building code Issue
     
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