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A. Spruce
Re: Need Help!! Back To Back Toilets

I can't answer your questions regarding the 3" line issues, but I can tell you that the toilet flange should be flush with the finished floor height.

MLB Construction
Re: Need Help!! Back To Back Toilets

you do not want a Tee because of the reason you stated. you need to intsall a 3" Wye. there are differing opinions about the flange. i install them on top of the tile, some people install then flush with the tile. either will be fine. DO NOT install the flange on the concrete and DO NOT tile up to the toilet. tile under the toilet.

dj1
Re: Need Help!! Back To Back Toilets

The 3" wye - I second MLB.

The flange - Flush to the tile is good, like spruce suggested.

Tile under the toilet - yes.

It's good that you asking, so you don't make mistakes.

After connecting the wye, wait for the pipe cement to dry, then run leak tests. After connecting the flange run more tests.

Fencepost
Re: Need Help!! Back To Back Toilets

More information: http://www.nibco.com/Fittings/Plastic-Fittings/ABS-DWV-Fittings/5836-Double-Long-Turn-Combination-Tee-Wye-Hub-ABS-DWV/

EDIT: I re-read your original post and I don't think this would work, since you're dealing with slab-on-grade construction, UNLESS the lateral pipe is deep enough. How far below the floor surface is the pipe?

DavidK27
Re: Need Help!! Back To Back Toilets

The lateral line isn't deep enough to use the above mentioned fitting. I am off to the supply store to buy a wye fitting with as long a sweep as will fit.

Thank you everyone for all of your advice. I'll let you know how I make out.

johnjh2o
Re: Need Help!! Back To Back Toilets

What type pipe do you have under the floor? Keep in mind that nothing will move to allow for the slip of a fitting.

John

MLB Construction
Re: Need Help!! Back To Back Toilets
Fencepost wrote:

More information: http://www.nibco.com/Fittings/Plastic-Fittings/ABS-DWV-Fittings/5836-Double-Long-Turn-Combination-Tee-Wye-Hub-ABS-DWV/

EDIT: I re-read your original post and I don't think this would work, since you're dealing with slab-on-grade construction, UNLESS the lateral pipe is deep enough. How far below the floor surface is the pipe?

that's what you would use for a second floor back to back toilet. since it's on grade, i'm assuming that the current waste pipe would not go straight down behing the toilet. instead it would go down behind the toilet then immediately curve in some direction.

dj1
Re: Need Help!! Back To Back Toilets

We need to see photos to make an accurate recommendation.

DavidK27
Re: Need Help!! Back To Back Toilets

I can't seem to load pictures. Apparently new users need 10 postings before we can post pictures.

I went to the store and bought more fittings. I think I have got it. The guy that helped me at True Value simply stated that what I am using is to code.

The 3" line below the concrete is 10 1/2" from the center of the pipe to the top of the concrete.

If you hear the sound of a jack hammer, you'll know I messed up some how.

dj1
Re: Need Help!! Back To Back Toilets

you can load photos on to a place like photobucket.com

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