Regular 3" bend vs. 4" x 3" closet bend - toilet rough-in

Discussion in 'General Plumbing Help' started by jmterail, Jan 9, 2019.

Help Support Plumbing Forums by donating:

  1. Jan 9, 2019 #1

    jmterail

    jmterail

    jmterail

    Member

    Joined:
    Dec 20, 2018
    Messages:
    8
    Likes Received:
    0
    Location:
    London, Ontario
    Installing a toilet in a joist bay, so space is limited.

    I would ideally use a spigot closet bend (like this: https://www.homedepot.com/p/4-in-x-...got-x-Hub-Closet-Elbow-C58072CLHD43/100343148) , cut down to level, and add a 4" hub flange.

    Unfortunately, up in Canada for some reason I cannot for the life of me find a spigot closet bend like that anywhere (big box and plumbing supply).

    Best I can find is a hub x hub closet bend: https://www.homedepot.ca/en/home/p.90-degree-closet-elbow-hxh-abs-dwv---4x3.1000678412.html

    But problem with that is:

    a) it seems that spigot 4" flanges don't exist in Canada (90% of what's for sale are 4 x 3 flanges, most with hubs)
    b) I have no room for a pipe stub to mount a 4" hub flange, and
    c) even if I could find a spigot 4" flange, there's no way to cut this bend to adjust it to the correct height.

    Since 90% of the flange options out there are 4 x 3 hub, ideally I could just use a regular 3" street 90, instead of a closet bend.

    I know that vert-horizontal with a regular 90 is a no-no in most cases - but are closets different? Surely it would be no tighter than the closet bend?

    TY!
     
  2. Jan 9, 2019 #2

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    6,574
    Likes Received:
    2,068
    Location:
    ,
    install 4x3 hubxhub closet 90 like you show
    install a pup piece of 4'' pipe inside the hub of the 90
    cut the pipe level with the finished floor
    a 3'' closet collar. one that goes over 3'' pipe
    will fit snug inside a 4'' pipe

    you are using a pipe as a bushing

    or

    if real tight,,,install a 3'' street 90
    with a coupling glued on the street end. looking up
    cut the coupling off level with finish floor and install a 4'' collar over the coupling
    with a 2'' piec of 4'' glued inside the 4'' hub
    again,,using a pipe as a bushing


    3 stool.jpg
     

Share This Page