tub drain options

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by jonwarner4, Aug 14, 2008.

  1. jonwarner4

    jonwarner4 New Member

    Messages:
    9
    Location:
    upstate ny
    Hi all,
    I'm in the midst of a big bathroom remodel, and am wondering if there are options for running the tub / overflow drain lines. Specifically, does the tub drain line have to run horizontally over to the overflow line, T in, and then drain vertically into the trap? Or can tub drain and overflow lines (assuming overflow line drops vertically and then 90's) meet horizontally at a T, and then hook into the P-trap?

    Most diagrams I see show the vertical drain line right under the overflow line. I'm hoping I can run it the way I've described (hoping that makes sense) above.

    Looking forward to your responses!
  2. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    You talking "tunning trap"?
  3. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
    Your options on waste and overflows are...

    Drain in tee: This is the common one where the drain goes back to a tee and the overflow comes down to the tee, then the trap is straight below the tee.

    Drain in shoe: This is where the overflow comes down then 90's to a tee which is directly under the tub drain and the tub drain goes straight down to the trap.

    Side outlet: The overflow goes straight down to a tee. The drain goes straight back to the tee then straight out the back to the trap.
  4. jonwarner4

    jonwarner4 New Member

    Messages:
    9
    Location:
    upstate ny
    many thanks!

    So well explained, Redwood! Looks like I'm talking about a "drain-in-shoe" setup.

    Follow up - is that a specialized fitting for directly under the tub drain? The part that came with the tub is a threaded 90 to accept the part inside the tub. Is there a special threaded T that can accomodate this, or do I piece it together with the standard parts?

    Thanks so much, I really appreciate it.
    Last edited: Aug 14, 2008
  5. patrick88

    patrick88 Plumber

    Messages:
    836
    Location:
    Webster Ma.
    I would try and use what you have. You want the distance as close to the trap as you can. I assume you have something in the way keeping you from running it normally.
  6. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
Similar Threads: drain options
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Options for Washer drainage Jan 11, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Basement Utility Sink Drain Options Jan 3, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Drain options when replacing an existing tub with a longer one (longer trap arm)? Mar 12, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Cast Iron drain plugged, options Jun 23, 2012
Plumbing Forum, Professional & DIY Advice, Tips & Evaluating drain options Apr 30, 2012

Share This Page