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Thread: Single to Double sink water and drain?

  1. #1
    DIY Junior Member
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    Apr 2006
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    Ann Arbor MI
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    Question Single to Double sink water and drain?

    I'm finishing a basement that is plumbed for a single sink and I'd prefer a double. The drain runs into the concrete, can I just send two sink drains down the one line? I also have one hot and one cold 1/2" coming in, is it reasonable to T off those or do I need to add another line from the 3/4" that I assume is in the ceiling behind the wall? Thank you, Roger

  2. #2
    In the Trades Gary Swart's Avatar
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    You need to get a drain assembly that will connect the two sinks into 1 trap. It's a sort of tee affair. I don't understand what you are thinking with the supply lines. Double sinks use just a single fixture in the center of the sink. The spout swivels to supply water to each side. It no different than a single sink in that respect.

  3. #3
    I&C Engineer (mostly WWTP) Lakee911's Avatar
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    Columbus, OH
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    I think he means two sinks, like in a bathroom vanity. You can tee off for the second where ever you'd like.

    Jason

  4. #4
    DIY Junior Member
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    That's it! Thank you. Finally a straight forward tasks

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