View Full Version : Toilet Drain

11-03-2009, 03:23 PM
I am installing a new toilet that is 4' away from my main stack and will be installing a 4" sanitary tee and stack venting the toilet. I have all intentions of installing a 4" closet flange as well.

Is a 4" closet flange appropriate for this?

What size closet bend should I use for this?

11-03-2009, 03:41 PM
You can use 3" or 4". Personally I like 4" but the 3" can be cheaper and easier to run. You can always increase the pipe size, but you never want to decrease it.

11-03-2009, 04:51 PM
If this toilet is going to be on the stack beneath another one, you CANNOT just install a tee and connect the toilet to it.

11-03-2009, 05:01 PM
This toilet is installed highest on the soil stack