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    bigbadd69's Avatar
    bigbadd69 Posts: 2, Reputation: 1
    New Member
     
    #1

    Jun 24, 2011, 05:52 PM
    Washer drain venting
    Should I have the drain in front of or behind the vent
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
     
    #2

    Jun 24, 2011, 06:10 PM

    Hi BB69...

    The PTRAP goes after the vent with a standpipe of about 30" out of the trap... see image below. Install a full-size cleanout in the vent at a height that is above the PTRAP standpipe just in case you need to snake the drain in the future, OK?

    Mark
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