Corney, if I were you, I'd use this product: http://set-rite.com/
Originally Posted by corney
As for myself, I'll probably going to go through concrete floor, cut flange, extend the pipe, and once heated floor is installed, and tiles are in, only then I'll install flange. Or install flange just before tiles. I still have time to figure this one out.
Why not try the set-rite kit.It seems an easy fix for flanges that are too low.You can go to
YouTube and see their video and see if it will fix your problem.