another bathroom rough in

Discussion in 'Remodel Forum & Blog' started by jakedvm, Jan 7, 2006.

  1. jakedvm

    jakedvm New Member

    Jul 8, 2005
    Hi, I am trying to figure out what these pipes mean in the rough in for our basement. The 3 inch is obviously for the water closet, and the others I'm not sure. Any help? The 2 inch pipe on the left will be in the wall and 16 inches from wall behind shelves. Is the pipe coming up in the middle the vent/lav drain? I don't hear water coming down this when any of the other bathrooms are in use.


    Attached Files:

  2. chassis

    chassis Engineer

    Sep 12, 2005
    SE Pennsylvania
    Not a pro, but here's my guess.

    3" is toilet waste drain.

    Short capped pipe on left is sink/lavatory waste drain.

    Pipe in the middle is vent.
  3. Sponsor

    Sponsor Paid Advertisement

  4. jakedvm

    jakedvm New Member

    Jul 8, 2005
    I was curious to know if it doesn't look like there is a shower/tub drain roughed in. Anybody else?
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    A sink drain and a toilet drain go straight down to the main sewer line - they don't have water in them normally and no trap. On the other hand, if you had a pipe in the floor for a tub or a shower, it must have the trap below it, thus, it would be in the floor. If you looked into this, unless it dried out (which is quite possible), you'd see standing water. It is not uncommon to leave a box around the drain for a tub or shower so you can get the trap centered on the thing once installed. Without being there, it is sometimes hard to tell (in fact, often hard to tell!).
  6. Cal

    Cal New Member

    May 10, 2005
    Northern Virginia
    Cut that shorter pipe off a few inches from the floor and pour some water down it to see if it's trapped. I think it looks like a tub rough in.
  7. jakedvm

    jakedvm New Member

    Jul 8, 2005
    Thanks, I'll try that later today.
  8. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    I would think it's a half bath.

    The 2" would be the toilet vent, which is reventing at 42" on the next floor.

    The 1.5" pipe would be a lav drain, which needs to be revented over to the 2" vent.

    Unless I'm wrong, because I'm not there and I'm guessing off of a picture.
Similar Threads: another bathroom
Forum Title Date
Remodel Forum & Blog buying a home, need another bathroom Feb 19, 2008
Remodel Forum & Blog And yet another "add sink in the laundry room" post! Apr 5, 2017
Remodel Forum & Blog Another Basement Thread Sep 26, 2014
Remodel Forum & Blog Another basement question Jan 30, 2013
Remodel Forum & Blog OT: The demise of another brand Nov 3, 2011

Share This Page