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Discuss Waste End Stop Cap - Newbie Question in the Plumbing Forum area at

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  1. capricious71

    capricious71 New Member


    This should be a really simple question for a plumber so here goes.

    Underneath the kitchen sink is a fitting for a dishwasher waste pipe. However, there's no dishwasher at the moment. Occasionally, water comes out of there. What's the best way of capping this, please?

    I tried using one of the other two from the sink outlets. The white nut goes on fine but the blue cap seems to be 2mm or so slightly smaller.

  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    • Like Like x 1
  3. capricious71

    capricious71 New Member

  4. Ric2013

    Ric2013 Plumber

    Graham plumbers' merchant has a very similar product as well.
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