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  1. #1
    wes owens's Avatar
    wes owens Guest

    Default dishwasher drain

    Inspected a 9 year old house today that had a 1/2 inch CPVC drain line from the dishwasher to the sink.

    It was a new double drawer dishwasher.

    Are there any dishwashers that allow this, or should they all be 3/4 inch drains?

    Thanks,

    Wes

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  2. #2
    Join Date
    Mar 2008
    Location
    Charlotte NC
    Posts
    2,303

    Default Re: dishwasher drain

    Quote Originally Posted by wes owens View Post
    Inspected a 9 year old house today that had a 1/2 inch CPVC drain line from the dishwasher to the sink.

    It was a new double drawer dishwasher.

    Are there any dishwashers that allow this, or should they all be 3/4 inch drains?

    Thanks,

    Wes
    I don't think I have seen a solid pipe (PVC or CPVC) drain line from the DW to the sink. Do you have pic's?


  3. #3
    wes owens's Avatar
    wes owens Guest

    Default Re: dishwasher drain

    No.

    I just noted it and recommended replacing with 3/4 inch.


  4. #4
    Join Date
    Mar 2007
    Location
    Oregon
    Posts
    2,365

    Default Re: dishwasher drain

    The only thing that makes me wonder is that it's a double drawer unit. Maybe they discharge separately and smaller amounts? Best thing would be to check the manual or run the model number and get to it online. That's where the best info will come from.


  5. #5
    Join Date
    Mar 2007
    Location
    Columbus GA
    Posts
    3,746

    Default Re: dishwasher drain

    I don't know about a 1/2" drain line, but the DW nipple on the sink tail peice is not 3/4", it's 5/8" OD.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  6. #6
    Jerrod Christian's Avatar
    Jerrod Christian Guest

    Default Re: dishwasher drain

    most double drawer dw have a drain from both drawers that tie into a rubber wye fitting that is connected with spring clamps with a 3/4" female side to tie onto a disposal or dw tailpiece


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