(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 10 of 10

Thread: three ways to plumb a toilet in a slab

  1. #1
    DIY Member mcnattyp's Avatar
    Join Date
    Mar 2005
    Location
    Portland Orygun
    Posts
    35

    Default three ways to plumb a toilet in a slab

    Option 1 (the PVC is just there for discussion):

    Name:  IMG_1251.jpg
Views: 511
Size:  98.9 KB

    Option 2:

    Name:  IMG_1252.jpg
Views: 453
Size:  98.8 KB

    Option 3:

    Name:  IMG_1253.jpg
Views: 652
Size:  96.9 KB

    Please view and discuss which one is the "best" way to plumb a toilet.

    In all cases, north of the picture is a bathroom sink, shower and washing machine. The visible parts are 3", the northward run would be bushed down to 2". Southward is a sewage pump, about three feet away in a direct line.

    Thank you folks! I love terrylove!

  2. #2
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,624

    Default

    Unless there is some reason for doing it one of those 3 ways, I would not use any of them. I would either position the Y so it angled directly to the closet bend, or use a combo to turn sideways to the bend. And I would NEVER use an internal closet flange, ESPECIALLY an all plastic one.
    Licensed residential and commercial plumber

  3. #3
    In the Trades Tom Sawyer's Avatar
    Join Date
    Nov 2010
    Location
    Maine
    Posts
    2,938

    Default

    Quote Originally Posted by hj View Post
    Unless there is some reason for doing it one of those 3 ways, I would not use any of them. I would either position the Y so it angled directly to the closet bend, or use a combo to turn sideways to the bend. And I would NEVER use an internal closet flange, ESPECIALLY an all plastic one.
    Boy does that bring back memories of a debate that raged for weeks LOL BTW, I is in your camp there.
    I'm not enamored with any of the above either but if I had to pick it would be option #2
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

  4. #4
    DIY Member mcnattyp's Avatar
    Join Date
    Mar 2005
    Location
    Portland Orygun
    Posts
    35

    Default

    Son of a biscuit, that would be the most obvious solution. Option 4:

    Name:  IMG_1254.jpg
Views: 594
Size:  94.3 KB

    Now explain why not an internal closet flange? Without it, I can't figure out how to sit the flange flush with the finished concrete floor, unless I just get the height absolutely right with the flange in place. I'd prefer to leave the end of the pipe sticking up during the pour instead of the flange attached.

    Thanks so much hj.

  5. #5
    DIY Member mcnattyp's Avatar
    Join Date
    Mar 2005
    Location
    Portland Orygun
    Posts
    35

    Default

    Oh wait, how about an even more elegant solution (IMHO)? Option 5:

    Name:  IMG_1256.jpg
Views: 451
Size:  97.0 KB

  6. #6
    DIY Member mcnattyp's Avatar
    Join Date
    Mar 2005
    Location
    Portland Orygun
    Posts
    35

    Default

    Regarding the inside flange question, I should state that it is a 4x3 closet bend so the ID of that inside flange is more than 3". Also, my basement slab is going to be the finished floor height, no flooring on top.

  7. #7
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,624

    Default

    I know it is a 4x3 closet bend, otherwise, I would have commented on that also. I wrap the riser with a cardboard "closet bend sleeve" and remove it after the concrete is poured. Then glue a "slip on" flange to it. Option 4 would be my choice, but as you are finding out, there are MANY ways to do something, so it depends on the installer which way it goes.
    Licensed residential and commercial plumber

  8. #8
    DIY Member mcnattyp's Avatar
    Join Date
    Mar 2005
    Location
    Portland Orygun
    Posts
    35

    Default

    Ah-ha, a cardboard sleeve, what a great idea. I had thought of a wooden sleeve of some kind, now it makes so much sense. I will do that, thank you! (And get a metal flange.)

  9. #9
    In the Trades Tom Sawyer's Avatar
    Join Date
    Nov 2010
    Location
    Maine
    Posts
    2,938

    Default

    There is also a commercially available plastic cap with a styrofoam support that slips over the pipe during the pour. I generally use foam sill seal and duct tape though.
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

  10. #10
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,624

    Default

    There are several different devices available to "wrap" the bend, besides "do it yourself" options.
    Licensed residential and commercial plumber

Similar Threads

  1. 101 ways to annoy people
    By cwhyu2 in forum Joke of the day
    Replies: 6
    Last Post: 11-08-2011, 09:40 AM
  2. Toilet riser WAY out of plumb - options?
    By jadziedzic in forum Toilet Forum discussions
    Replies: 18
    Last Post: 10-19-2010, 09:39 PM
  3. Ways to cut clay pipe?
    By Blade_Jones in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 3
    Last Post: 12-19-2006, 04:58 AM
  4. HELP! Ways To Increase Water Pressure??
    By kenco1 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 7
    Last Post: 12-09-2005, 12:49 PM
  5. How to plumb toilet drain?
    By phillip in forum Toilet Forum discussions
    Replies: 3
    Last Post: 03-04-2005, 04:51 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •