Michael Townsend
Michael
I have two (2) Half Baths that I'm remodeling and they both have Cast Iron Toilet Flanges set in a concrete floor. Plan is to install 6x6 ceramic tile with a 1/4" thick "Hardi Backer Board" for the new flooring. Currently the Cast Iron Toilet Flanges are set about 1/8" to 1/4" below the concrete floor. After installing the tile, the Cast Iron Toilet Flanges will be much lower at about 5/8" to 3/4" below the finished Ceramic Tile Flooring. Which raises my concern about installing the Toilet and getting a good seal between the Toilet and the Cast Iron Toilet Flange.
As you will see in the following pictures #1 Flange is not too bad. I'm thinking I can get away with a double wax ring and some long closet bolts.
The #2 Flange was not set in the concrete quit right and you can see that the Plumber had to get creative and modify the flange to "lead in" a couple closet bolts due to the misplacement of the slots. Both bolts cleaned up OK and they seem to be pretty tight in the lead. Besides the Flange being turned the wrong way it is also out of level by almost 3/4" from front to back. Also I'm guessing that while the Plumber was being creative with the lead-in of the Closet Bolts he cracked about 3" of the Flange off on the right side which concerns me about how to seal the wax ring in this location. Can I take some "Vinyl Concrete Patch" and repair this area and let the wax ring seal against the patch since the hub of the seal is intact to the top of the rim ? Then extend the existing closet bolts with a thick Brass nut and a new section of a brass closet bolt to gain the height I require? Finish up with a double wax ring?
I cant use an Oatey PVC Flange w/compression gasket that fits the ID of the 4" Closet Bend cause the flanges are set too deep on the concrete and the compression gasket wont reach the 4" Closet Bend. See diagram.
Any and all advice is much appreciated.