Dishwasher with no Garbage Disposal

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by micalk, Apr 14, 2007.

  1. micalk

    micalk New Member

    Joined:
    Aug 28, 2005
    Occupation:
    Electronics Engr
    Location:
    Simi Valley, CA
    How's it done? The instructions have the dw drain going straight into the plumbing, no air gap. Can it be run similar to a clothes washer drain, where the output of the dw is hooked over the edge of a drain pipe angled out of the wall with a P-trap at the bottom? What are my options? This is a Fischer-Paykel single drawer and will be used mainly for cups and silverware at the coffee bar, so I'm not concerned about any heavy waste, though my main dw is a little far from the kitchen sink, and may employ a similar technique there, if practical.
     
  2. Gary Swart

    Gary Swart In the Trades

    Joined:
    Sep 1, 2004
    Location:
    Yakima WA
    Air gaps are not always required by local codes. If one is not used, then the drain hose must be looped and attached under the counter top. It attaches to the sink drain with a special tail piece that has a pipe stub teed out of it that the hose clamps onto. If an air gap is required or desired, then it is install in the counter top. The hose attaches to the drain the same as described above.
     
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  4. geniescience

    geniescience Homeowner

    Joined:
    Nov 27, 2005
    Occupation:
    ditto
    Location:
    humid summers hot, humid winters cold
    Dishwasher Branch Tailpiece. Search for that. Add "tubular" as one more keyword if necessary.
     
  5. RioHyde

    RioHyde Plumber

    Joined:
    Sep 24, 2004
    Occupation:
    Plumber
    Location:
    Cincinnati, Ohio
    0001.jpg


    Dishwasher tailpiece

    As Gary said, an airgap may not be required. Check with the local plumbing authority in your jurisdiction. If you don't use one, just be sure to loop the drain hose and attach it to the underside of the counter.

    Good luck
     
  6. micalk

    micalk New Member

    Joined:
    Aug 28, 2005
    Occupation:
    Electronics Engr
    Location:
    Simi Valley, CA
    Thanks, RioHyde - That's exactly what I was looking for. AFAIK, I'll need an airgap too, but that's between me and my inspector....
     
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