Flange Questions - Please examine my pictures

ufokillerz · Mar 14, 2011

A while ago, i noticed that some drywall in the basement was wet, i thought it might be the toilet on the first floor. when i first installed the toilet on the first floor, i noticed that the flange looked a bit off, and i could not get a fluidmaster waxless to fit. I think that the iron pipe is too high up?

Please do let me know what i should do, i am not a professional plumber, i am a self proclaimed handyman with some tools and willing to get my hands dirty. I installed a toto ultramax and a toto carlyle in my 2nd floor with no issues at all.

Jadnashua · Mar 14, 2011

If the toilet won't sit on the flange without any wax, you'll have to remove and reset the flange. They are designed to sit flat on TOP of the FINISHED floor. A CI flange is fairly thick on its own, and when it sits higher, means many toilets won't fit. The waxless may be a little thicker, and a plain wax ring might work. But, first see if the toilet rocks on the flange, or can sit flat on the floor.

Sponsor · 2022-01-29T12:20:58-0800

ufokillerz · Mar 14, 2011

thank you for the reply, i will try to set it without a wax ring and see if it rocks. i know with the seepless rings it did not work, but amazingly it never came to mind to try it without a wax ring.

Terry · Mar 14, 2011

There are two sizes for the Fluidmaster Waxless seal. You need to be able to shove it down into the pipe.
Like JD mentions, it's good to set the bowl dry first, just to make sure that the flange isn't giving you grief.
If the flange is okay, you may wind up using either a single wax with no plastic horn, or you may be able to use the Fluidmaster.
If you use the Fluidmaster, push it onto the bowl first.

If you use wax, set it on the flange.

You see it's easy; read the directions and then reverse them, that's what the plumbers do to make it work.

ufokillerz · Mar 14, 2011

thanks for the replies! another question for you guys, you can see that the flange doesn't actually touch the floor, should i fill it in with anything underneath?

Gary Swart · Mar 15, 2011

In my non professional opinion, I would fill under the flange. As you probably know, a flange is supposed to sit on top of the finished floor. This provides support. Whoever did the tile work erred by not extending the tile as far are possible under the flange. I would do that now. You only need to get some pieces under there to give the support. Perhaps something like Rock Hard Putty would work.

Jadnashua · Mar 15, 2011

From a practical point, with the cast iron, it probably doesn't matter IF the thing is embedded in concrete. If on a wooden subfloor, definately. This assumes it is a leaded on CI flange...if it is one that is held in place by a gasket, absolutely anchor it. that ring is what holds the toilet in place, if it can move, so can your toilet, and that would be really bad for the seal.

Terry · Mar 15, 2011

If the flange is solid, you're fine.
If not, make it so Scotty!
Normally I would expect to see some screws securing the flange.

Glnow · Mar 15, 2011

Terry said:
If not, make it so Scotty!

#1, or Data, or Geordi yes, ...but Scotty?

LLigetfa · Mar 15, 2011

glnow said:
#1, or Data, or Geordi yes, ...but Scotty?

Ja, wrong series. "Make it so" was Picard. Not Kirk either asking McCoy to do it. "Damn it Jim, I'm a doctor not a plumber"

hj · Mar 16, 2011

1. that is an OLD cast ron pipe, so your "clamp on flange" may NOT be making a watertight seal to the riser, and the same thing can happen on the inside when you try to use a waxless seal.

Dugfresh · Mar 24, 2011

The flange appears to be too high above the finished floor, squishing out the wax. Unbolt the flange, lower it to be sitting directly atop the floor and then retighten. You should only need one regular sized wax ring to make the seal.

Flange Questions - Please examine my pictures

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