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Thread: 1st flr Washing Machine Drainage

  1. #1
    DIY Junior Member
    Join Date
    Jun 2005
    upstate ny

    Default 1st flr Washing Machine Drainage

    I am planning on installing a washer and dryer in an 1st flr closet. The existing washer & dryer are in the basement. The washer drains into a basement sink. Can I run 2" pvc drainage pipe from the closet to the basement sink? Is this an acceptable code wise in any state? Or do I have to make a connection into the waste stack?

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Bothell, Washington
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    If the lower sink is a 2" line, you should be able to wye in below the sink and run a two inch pipe up. You will also need a p-trap for the washer and vent it.


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