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    How to install washer hook up and drain lines

    Asked Jul 22, 2007, 05:38 PM 4 Answers
    How do I hook up my washer backed up to my sink.it is mostly the drain line that concerns me.can the washer drain tye into the sink drain and how

    Last edited by dlsedg7; Jul 22, 2007 at 05:59 PM.
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    iamgrowler's Avatar
    iamgrowler Posts: 1,421, Reputation: 110
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    #2

    Jul 22, 2007, 05:58 PM
    Quote Originally Posted by dlsedg7
    how do i hook up my washer backed up to my sink.it is mostly the drain line that concerns me
    Well, if you have a garbage disposal, you can run the discharge hose to the 7/8" port at the top of the disposal.

    If you don't, you can add a wye branch tailpiece just under the basket strainer.

    If you're on the West Coast, you'll need to install an airgap on the countertop -- If you're not, you can do a highloop and run the drain hose just underneath the countertop before dropping into the disposal or the tailpiece.
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    dlsedg7's Avatar
    dlsedg7 Posts: 3, Reputation: 1
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    #3

    Jul 23, 2007, 06:00 AM
    Quote Originally Posted by iamgrowler
    Well, if you have a garbage disposal, you can run the discharge hose to the 7/8" port at the top of the disposal.

    If you don't, you can add a wye branch tailpiece just under the basket strainer.

    If you're on the West Coast, you'll need to install an airgap on the countertop -- If you're not, you can do a highloop and run the drain hose just underneath the countertop before dropping into the disposal or the tailpiece.
    Thank you for the response but I thought the drain hose discharged into the stand pipe,I must not understand
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    scirocco70's Avatar
    scirocco70 Posts: 127, Reputation: 9
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    #4

    Jul 23, 2007, 06:03 AM
    Do you mean a dishwasher or a clothes washer?

    A dishwasher is commonly connected to a garbage disposal or a sink, but a clothes washer discharges a LOT more water and needs it's own 2" standpipe drain with a trap. I believe most codes say the minimum height for the standpipe is 18", and the max around 43"... there has been some discussion of clothes washer standpipes here recently, you can probably find it by searching on "standpipe"

    If the current sink drain is 2" you could be in fine shape. Very often however, the drain tailpiece from the sink is 1 1/4, and then the P-trap converts to 1.5" In that case, i would I think you'll need to convert to 2" from where the standpipe connects all the way back to the main stack, or at least until if gets to 2" or larger. Be aware of other things that may drain into the same branch/arm off of the main stack, and be sure you have enough drain. 3" can handle just about any number of household fixtures.



    ~aaron


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    dlsedg7's Avatar
    dlsedg7 Posts: 3, Reputation: 1
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    #5

    Jul 23, 2007, 06:20 AM
    Quote Originally Posted by scirocco70
    Do you mean a dishwasher or a clothes washer?

    A dishwasher is commonly connected to a garbage disposal or a sink, but a clothes washer discharges a LOT more water and needs it's own 2" standpipe drain with a trap. I believe most codes say the minimum height for the standpipe is 18", and the max around 43"... there has been some discussion of clothes washer standpipes here recently, you can probably find it by searching on "standpipe"

    If the current sink drain is 2" you could be in fine shape. Very often however, the drain tailpiece from the sink is 1 1/4, and then the P-trap converts to 1.5" In that case, i would I think you'll need to convert to 2" from where the standpipe connects all the way back to the main stack, or at least until if gets to 2" or larger. Be aware of other things that may drain into the same branch/arm off of the main stack, and be sure you have enough drain. 3" can handle just about any number of household fixtures.



    ~aaron


    .
    Thank you for the answer. I was referring to a clothes washer. Since I will have two turns in the pipe,one from the standpipe and one into the main stack, what do I need to use?
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