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Thread: Kitchen sink drain

  1. #1

    Default Kitchen sink drain

    I am installing a new sink in an older house, I read on this board about a problem with a new deep sink and the drain in the wall being too high for drainage for dishwasher, disposal etc. What would be a safe drop distance from the bottom of sink to drain pipe to accomadate DW, DISP. etc. Thanks

  2. #2
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
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    7,245

    Default

    Drains should have a slope of 1/4" per linear foot. However, for practical purposes, the short distance that a sink drain has to go, level or slightly less than level is enough. Just make sure you are not try to make water run up hill.

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