Kitchen sink drain

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Time1992, Oct 11, 2007.

  1. Time1992

    Time1992 New Member

    Messages:
    14
    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. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,397
    Location:
    Yakima WA
    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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