Drain for curbless shower

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Queeni1951, Apr 26, 2018.

  1. Queeni1951

    Queeni1951 New Member

    Joined:
    Jan 17, 2018
    Location:
    Harrisonburg, va
    new construction
    Floor joists 2” below tonallow for curbless shower
    What kind of drain can be installed? Would like linear but plumber says not enough depth of subfloor and keep it curbless.
    Help!
     
  2. GTOwagon

    GTOwagon Member

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    Jan 18, 2018
    Location:
    Ballston Lake NY
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  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    What's underneath? If there's no room beneath for a linear drain, there probably isn't enough for a conventional one, either. The issue may be the depth of the trap and where it starts. The conventional clamping drain is similar to a linear drain in total depth. If it is the total depth beneath the floor for the trap and vent arm, is there any possibility to put in a soffit or something similar below to give you that required depth?
     
  5. Queeni1951

    Queeni1951 New Member

    Joined:
    Jan 17, 2018
    Location:
    Harrisonburg, va
    ItWe
    It is a one story so shower is on main floor but in an area of the house that juts out. Full empty basement below but not underneath the jut out.
     
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    If it's a crawl space, there should be no issue with depth. The plumber may not want to actually crawl under there to do the work, though!
     
  7. Queeni1951

    Queeni1951 New Member

    Joined:
    Jan 17, 2018
    Location:
    Harrisonburg, va
    It is a full basement below the first floor EXCEPT not under the shower. The shower is a jut out.
     
  8. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    I don't see a problem doing any kind of a drain, but I'm not there to see what the plumber may be seeing. To plumb it up, you'd either have to get underneath, or tear the subflooring off unless the distance is short enough to reach.

    One complication may be which way the joists run and where you want to put the drain. If the linear drain would cross over multiple joists rather than sit between them, if you try to recess it into the floor rather than having your mudbed thick enough to keep the body above, that could be a major problem.

    Maybe a sketch of the area showing where the shower is supposed to be and the joist layout may make it clearer. You can attach a file when posting...use the 'Upload a File' option and upload it from your computer.

    A linear drain is often installed at the back of the shower along one wall. But, it can also be installed in the middle of the shower with two sloped sections, rather than one, which gives a bit more flexibility.
     
  9. Queeni1951

    Queeni1951 New Member

    Joined:
    Jan 17, 2018
    Location:
    Harrisonburg, va
     

    Attached Files:

  10. Queeni1951

    Queeni1951 New Member

    Joined:
    Jan 17, 2018
    Location:
    Harrisonburg, va
    Image above:
    Installing showerhead on left wall as you look at pic.
    Controls to turn on and off shower on wall to the left of door opening as you look at pic.
    May not use door; may use a door. Will try it out first without a door.
    Hand held shower on a sliding bar will either be installed beside showerhead or where controls are.
     
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