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  1. #1
    Ryan Stouffer's Avatar
    Ryan Stouffer Guest

    Default Waste plumbing size

    Does anyone know if there are any codes on the size of the waste plumbing underneath bathroom sinks. I inspected a home today and the the waste plumbing diameter was 1-1/4 inch. It seemed a bit small. I think they are usually 1-1/2.

    Thanks,

    Ryan

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  2. #2
    Michael Garrity's Avatar
    Michael Garrity Guest

    Default Re: Waste plumbing size

    I -1/4" is the min


  3. #3
    Michael Garrity's Avatar
    Michael Garrity Guest

    Default Re: Waste plumbing size

    until it reaches another fixture then the size increases


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