Toilet Ring, Above or flush with the Floor?

I have a closet flange that sits below the floor, and didn't like stacking rings to make it work(leak free), so I was told to extend it to flush with the floor.

So from this advice, I guess you can be flush to below, but best to check with manufacturer's instructions.

imho,

tom @

Its a New bathroom and new floor, so right now there is a 3" ABS Pipe that is Flush with the plywood subfloor. When we put the Backer board down we didn't leave room for the flange figuring that it would sit on the Backerboard and then be pretty close to flush with the finished floor.

So flush with the FF it is!

I have seen no more than two wax rings stacked, but then you usually have to trim one of the rings (messy), use too much compression when seating rings, and they will crack.

Adapters are the way to go, besides, anyth> >

Putting the Rings in the oven for a few minutes helps too! (-;

I didn't want to move the plumbing so cut the hardibacker around the current flange and use a similar spacer (from Home Despot). My problem now is that the floor is 7/8" higher than it was and can't find closet bolts long enough. They have long enough 1/4" bolts everywhere but they just spin in the flange. The flange wants

...one more place to try this afternoon.

County Already passed the plumbing/venting. Not my fault if they didn't catch it. (-; Both Toilets are that way.

All that is left is the Final, so the Toilet will be on the flange when they come back again.. (-; hehehe