Hi, After laying out out the tiles, I had a feeling that the toilet may have issues sitting flush with the floor, and yes, such was the case. What I have done so far:- I removed old tile. The under layment was mud bed which I removed too. I installed a new underlayment, Ditra waterproof membrane, and then I installed tiles over it, end result, the bathroom floor went down by about 1/2 inch when I place the new toilet bowl I see that it is not sitting flush with the floor, but is about 1/4 inch above floor. What are my options?