The cement within a ring of about 3 or 4 inches around the soil pipe is uneven. There is a slight grade up toward the pipe. The grade is about quarter to a half inch.

Do I need to grind this down a little or do I try to float some leveling cement around the pipe to get a better area to put the toilet down on?

I will be installing tile on this floor so I could float the difference in grade a little with the versabond too I guess....I just wanted to have a good surface to attach the closet flange to.

I've done 2 or 3 installs in a wood floor so grade wasn't a question. The last install on concrete slab was a breeze since the slab was nice and level.

Thanks in advance...I've been searching and searching for any answer to this odd-ball question.

Jeff

speedball1

Hi Jeff,
Not a "odd ball question" but a very pertinent one. You have told me everything except what material the pipe and flange consist of. What's wrong with leveling the slab, tiling the floor and then installing the flange over the tile. Do not tile up to the stubup leave a 1/2" ring around the pipe to set the flange. Or level the slab, set the flange, tile and then set the toilet. Good luck, Tom

darrel1953

Yes you need that tile floor to be nice and level underneath the toilet otherwise you will need to shim the toilet and then hope its not too noticeable after you caulk your toilet base to the floor. Remember tile always goes underneath the toilet meeting the flange or with a slight offset (seperation between the tile and the flange so that the closet bolts will slip in and out of the flange without getting trapped by the tile.) For a perfect illustration of this go to http://www.plumbinglessons.com/sup/toilet.htm
Carpet on the other hand never should go under the toilet.
Something else to bear in mind is if the flange ends up below the tile you can usually make it up with another wax ring. If it is going to make it 3 wax rings high I would raise the flange. If on the other hand the closet flange is going to be above the tile you may need to lower the flange if your toilet base won't reach the floor because the porcelain will crack under that situation. Thanks for wanting to do the best job.

maroon141

The stubup is your good ole standard PVC. My last couple of tile projects involved a bathroom with the closet flange already in. Then again, they were on floors above the basement so there was nice level wood there instead of the concrete slab.

Thanks for the quick response. I think I will grind down some of the sharper edges then float some SLC around the stubup and install the flange then tile up to the flange. Makes any future tile work easier to do.

Thanks again!!

Jeff from Minnesota...