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Thread: double sink drain Q

  1. #1
    DIY Member casman's Avatar
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    Default double sink drain Q

    Recent remodel. Sink has noticable odor, I'm thinking the drain setup looks a little funny. Is it ok forthe disposer, after the trap to connect just below the other sink drain at the tailpiece, into a T-Fitting?

  2. #2
    Master Plumber-Gas Fitter shacko's Avatar
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    Default Oder

    Anything connecting after the trap is a no-no, thats the same as running a drain without one. If you have this hook-up thats the prob.

  3. #3
    DIY Member casman's Avatar
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    Default

    Quote Originally Posted by shacko
    Anything connecting after the trap is a no-no, thats the same as running a drain without one. If you have this hook-up thats the prob.

    Not real clear on what your saying. Not to be funny but it has to connect to something or are you saying it should only connect to the vert drain line with nothing in between. I'm thinking maybe is this a double trap scenario perhaps. Disposer side goes to trap then horiz to t fitting at tailpiece on other side, then down to trap then out to vert drain line in the wall. I'm thinking is this basically a double trap scenario which isn't allowed. Think I'm losing it....

  4. #4
    Plumber plumber1's Avatar
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    Default odor

    I believe he is asking, do both sides of the sink go through one trap or is there a one trap for the disposal and one trap for the other side of the sink?

  5. #5
    I&C Engineer (mostly WWTP) Lakee911's Avatar
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    Quote Originally Posted by plumber1
    I believe he is asking, do both sides of the sink go through one trap or is there a one trap for the disposal and one trap for the other side of the sink?
    Couldn't you do it either way? One common trap being most common.

    Jason

  6. #6
    DIY Member casman's Avatar
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    Default

    There is 2 traps. Sink 1 disposer side, Exit disposer to trap then over to t fitting at bottom of tailpiece for other sink, then down to trap 2, then to wall. Sound OK.

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