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    Washing machine to sink waste?

    Asked Dec 5, 2007, 07:00 AM 3 Answers
    This question has been asked many times I'm sure but I've attached a sketch of my condition... can any when tell me if this will work? Or should I use the standard washing machine p-trap assembly? I just thought it would be better to have the washing machine drain into it's own 2" line then almost directly to the 2" waste at the wall.

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    ballengerb1's Avatar
    ballengerb1 Posts: 26,081, Reputation: 2201
    Home Repair & Remodeling Expert
     
    #2

    Dec 5, 2007, 07:09 AM


    Your drawing looks like it should work. The stand pipe should be at least 33" tall. If you ever get any backup up you can add a water tght collar at the top but this rarely is needed. Some new Maytag washer pump a lot of water and can cause even a 2" pipe to back up with no clog or restriction in the pipe.
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    Cheffie's Avatar
    Cheffie Posts: 32, Reputation: 4
    Junior Member
     
    #3

    Dec 5, 2007, 07:19 AM
    Quote Originally Posted by mingus69
    This question has been asked many times i'm sure but I've attached a sketch of my condition...can any when tell me if this will work? or should i use the standard washing machine p-trap assembly? I just thought it would be better to have the washing machine drain into it's own 2" line then almost directly to the 2" waste at the wall.
    I have done a similar set up like your drawing and it works fine, when I set up mine I figured that when the water begins to go through the waste water line it would create suction and draw the water away from the bathroom sink, and it does.
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    speedball1's Avatar
    speedball1 Posts: 28,574, Reputation: 1906
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    #4

    Dec 6, 2007, 05:21 AM


    This set up should drain OK. My only concern is the elevation of the sink. A partial clog or a high output washer pump, such as a Maytag, could force the discharge back up through the sink. HGor high is the sinks rim in relationship to the washer stand pipe. If this does occur do you have a way to seal off the sink? That would solve the problem. Good luck, Tom
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