Can someone tell me how much space is needed between the toilet flange and the bottom of the toilet to safely set the wax ring?
I am replacing a vinyl floor and underlayment in a bathroom where the floor has settled enough so, even with 1/4″ underlayment and the vinyl, the cast iron toilet flange will now be close to 3/8″ above the finished floor. This leaves me with only about 1/4″ space for the wax ring.
Raising the entire floor is not a viable option so my other options seem to be:
1. Gamble that I have enough space so the wax doesn’t all squeeze out.
2. Lower the cast iron flange which has been there 90 yrs. and I assume is lead soldered. How difficult would that be?
3. Use thicker underlayment. Haven’t found any plywood guaranteed void free locally.
4. Elevate the toilet on a 3/8″ pedestal. My current solutionon the old floor. Ugly!
Edited 3/8/2007 8:28 pm ET by oldfred