Joist under tub drain.

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by ckl111, Mar 24, 2013.

  1. ckl111

    ckl111 Home Builder

    Messages:
    65
    Location:
    Ontario
    Replacing an old tub with a new fiberglass one. The tub drain is directly over the floor joist. Is it ok to offset the drain and overflow with some 45s? The water drains fine but I wanted to check if there was a better way to do this. With the offset, we only had to slightly notch the joist at an angle. I can sister a new 2x8 on the other side later.

    Attached Files:

  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,939
    Location:
    Bothell, Washington
    That would be fine.
    Normally I offset a little differently, keeing the santee vertical and 45 over the overflow tube, but what you have works too.
  3. ckl111

    ckl111 Home Builder

    Messages:
    65
    Location:
    Ontario
    Keeping the tee vertical was the original plan but the copper was in the way. I didn't want to move it unless it was necessary. The old drain came down the other side of the joist but that side is boxed in with a kitchen bulkhead that wont be accessible until the kitchen demo is complete.

    I see what you mean now though. If I used a regular 45 instead of the street 45, maybe I could have offset it a little more to clear the pipe and then 45 the overflow keeping the santee vertical.

    Thanks Terry
    Last edited: Mar 25, 2013
Similar Threads: Joist under
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & under joist plumbing May 6, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Re-plumbing house, runl Pex through joist or under the joists? May 12, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Horizontal Run Under Joists Feb 21, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Shower drain between, then under floor joists... Apr 18, 2011
Plumbing Forum, Professional & DIY Advice, Tips & What is the standard reinforcing for at floor joist notched for a tub drain? Jun 15, 2014

Share This Page