We recently had bathrooms flooring replaced with ceramic tile, and as I replaced wax rings as I replaced the toilets, they seem to leak slightly with flush. My guess is that the additional height of the floor (due to backerboard and tile put on floor after carpet pulled up) makes the standard wax ring not thick enuf between the toilet and the floor drain. Is there a special type wax ring to use after installing a ceramic tile floor? Or Have you any other ideas? My wife is waiting!!!