Sizing for Washing Machine Vent

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by RoseHawke, Jun 14, 2007.

  1. RoseHawke

    RoseHawke New Member

    Messages:
    6
    Location:
    Wilds of Alabama
    Good day :D! I have a very specific question. I am moving my washing machine from one side of the room 12' away to the other (so it'll be next the dryer.) Currently it has a 2" drain (standpipe) and shares a vent with the kitchen sink. For the new setup should the new vent be 2" also?

    Thank you!
  2. markts30

    markts30 Commercial Plumber

    Messages:
    630
    Location:
    Phoenix, AZ
    For a washer, you should only require a 1 1/2" vent - but a 2" drain....
  3. FloridaOrange

    FloridaOrange Plumbing Designer

    Messages:
    1,317
    Location:
    SW Florida
    New codes in Florida require a 3" sanitary to a 2" trap, a 1-1/2" vent is acceptable. If you are going to have it inspected you might want to verify the sanitary size to the trap.
  4. RoseHawke

    RoseHawke New Member

    Messages:
    6
    Location:
    Wilds of Alabama
    1.5 sounds fine. That's what I needed to know. Thanks!
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