Combining shower, tub, and toilet drains...

Discussion in 'Remodel Forum & Blog' started by erock, Aug 5, 2008.

  1. erock

    erock New Member

    Messages:
    3
    Location:
    Austin Texas
    Hello... been browsing here a long time but first post. I have layed out a bathroom remodel. The tub has been moved and a shower added and I can't access the original tub drain. I can however access the 3" drain from the toilet, and want to confirm my layout will work.

    The drains from the tub (1 1/2") and shower (2") will come together after several feet and continue in a 2" pipe until coming into the 3" sewer line about 6' downstream from the toilet. Each fixture has it's own vent at the fixture after the traps. Everything has a proper downward slope.

    My main concern is the toilet being upstream in this layout. Am I OK as long as everything has it's own vent?

    Attached Files:

  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,689
    Location:
    Cave Creek, Arizona
    drains

    What you have drawn looks acceptable, but that does not mean that the way you finally install it will be. There can be many slips between a good drawing and a good installation.
  3. iminaquagmire

    iminaquagmire DIY Senior Member

    Messages:
    207
    You've drawn sanitary tees in which would be better replaced by wye fittings.
  4. erock

    erock New Member

    Messages:
    3
    Location:
    Austin Texas
    The union at the shower/tub junction is a long-turn wye, as well as the union into the 3" drain from the toilet.

    I appreciate the responses, btw...
  5. erock

    erock New Member

    Messages:
    3
    Location:
    Austin Texas

    I am certainly not a professional plumber, but have had many successful installations/modifications in the past. I just like to check with the pros to make sure I at least start with a good drawing ;)
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