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Thread: New shower stall darin problem

  1. #1

    Default New shower stall drain problem

    I am remodeling a bathroom and removed the tub to make a shower stall. I made the stall using the Shulter system which worked good. The drain is 2", the old connections are all 11/2". So I had to connect it that way. Now that the drain is hooked up and not leaking, water stays in the pipes to about 3" below the top of the drain. I tried making the trap lower, but to no avail. The trap is located before the drain makes a 90 into the floor joists then runs to the main stack. I do not know how to get the waste water to drain from the main line and only leave water at the trap.
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    Last edited by eldagwood; 01-06-2008 at 12:39 PM. Reason: new pic

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Aug 2004
    Bothell, Washington
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    That is a deep trap there.
    A normal trap weir looks like a U

    Water depth is determined by the pipes though, and I expect that you will still see water looking down the drain.
    Most of the time, I have at least 2" of wood above the hole in the floor joist.

  3. #3

    Default Darin

    So the trap is bad? Will the water be ok if it sits at the drain like that?

  4. #4
    Master Plumber Redwood's Avatar
    Join Date
    Dec 2007


    Several problems...

    1 The depth of the trap is way deep. Why not just buy a trap so its right?

    2 The 2" drain is connected to 1 1/2" pipe by what I'm reading. It should be 2"

    3 You have made a running trap which it prohibited by code.

    4 Where is this vented?


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