• Dem Bosain
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    116 months ago

    Ignoring scale and any local requirements, yes, that’s a valid trap and vent.

    Be aware that local inspectors can be touchy about t-junctions. You might need a rounded or angled junction here so the new drain doesn’t splash directly against the opposite side of the vent.

    • @[email protected]OP
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      76 months ago

      Cool - thank you…

      Do you happen to know why so many diagrams seem to have loops? (like this):

      • @[email protected]
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        46 months ago

        I know absolutely nothing about professional plumbing, but wouldn’t that sink loop need to be there to act as a drain and vent for the sink? I don’t think the main vent stack would work for that without it

      • Dem Bosain
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        96 months ago

        Without that extra loop, it’s possible that flushing the toilet will suck the water out of your sink trap.