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Thread: Utility tub installation

  1. #1
    DIY Junior Member
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    Question Utility tub installation

    I've wanted for some time to install a slop sink in my utility room. I notice that about 16" to the left of the washer standpipe there is a 2" capped black plastic pipe sticking about 3" out from the wall. This pipe is 21" above the floor. I was hoping that this is a waste line the builder put there just for the future installation of a utility sink. Is this possible or might this pipe have some other use?

  2. #2
    Plumbing Designer FloridaOrange's Avatar
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    Default

    Sounds like it. No water stubouts?
    Matt
    Semi-professional plumbing designer
    Enjoying life in SW Florida

  3. #3
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    Default No stubouts

    I'm thinking of screwing on wye adapters onto the hot and cold water supply valves for the washer to get water to the utility tub. Make sense?

  4. #4
    Master Plumber-Gas Fitter shacko's Avatar
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    Question

    That pipe could be a clean out for an extisting fixture. You have to check to see if anything is tied into it, if so tying into that line will require a vent going up to your venting system.

  5. #5
    Plumbing Designer FloridaOrange's Avatar
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    Quote Originally Posted by shacko View Post
    That pipe could be a clean out for an extisting fixture. You have to check to see if anything is tied into it, if so tying into that line will require a vent going up to your venting system.
    Correct but I was guessing and haven't seen many cleanouts sticking out 3" from the wall.
    Matt
    Semi-professional plumbing designer
    Enjoying life in SW Florida

  6. #6
    Moderator & Master Plumber hj's Avatar
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    Default pipe

    But 21" high is a bit much for a laundry sink. Depending on what the pipe actually does, it may not be properly vented either. I doubt that anyone would install a dedicated riser for a future fixture not knowing if it would ever be used.It could be a cleanout and the 3" is so it would project out of the wall if the area were ever finished. One clue would be whether it is sealed with a screwed plug or a glued on cap.

  7. #7
    DIY Junior Member
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    Default Cleanout?

    I checked and realized that the cap is a screw on type. I suppose this means that it is intended as a cleanout. There is a floor drain in the room. Perhaps I could situate the new sink there and route the waste line to the floor drain.

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