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-   -   Single or dual trap for two lavatories? (https://www.askmehelpdesk.com/showthread.php?t=44514)

  • Nov 23, 2006, 03:46 PM
    billybard
    Single or dual trap for two lavatories?
    OK, Mr. Tom:

    Nuther question for the expert.

    In plumbing the DWV in a bathroom with two sinks on the same countertop, it is better to use separate P-traps for each sink, or is it legal to run both lavatories to a single P-trap?
  • Nov 23, 2006, 04:02 PM
    speedball1
    Quote:
    Originally Posted by billybard
    OK, Mr. Tom:

    Nuther question for the expert.

    In plumbing the DWV in a bathroom with two sinks on the same countertop, it is better to use separate P-traps for each sink, or is it legal to run both lavatories to a single P-trap?
    Hey Billy,
    It's "dealers ckoice". You may either install a wye on the stub-out and connect a trap to each lavatory or, if you have the height from the trap to the pop-up to install a compression tee, you may install a continuous waste.
    You would get better drainage with two traps but I've installed them both ways. Good luck, Tom

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