Toilet closet flange extension ring questions. Plumbers, help!

[GeekBoy]

Even with a 1/2" closet flange extension ring, the flange still sits about 1/4" lower than the new tile floor. Is that okay for a standard wax ring, or should I get an extra-thick wax ring? Also, how do I secure the 1/2" flange extension to the existing closet flange? It just sits on top of it with the bolts running up through it, but I imagine it could wiggle around... should I screw it down through the original flange to the sub floor? Lastly, will the closet flange extension ring leak? I just sits on the existing flange... won't it leak through that tiny gap as it sits on the flange without any wax or anything under it? Thanks!

[me]

Use TWO wax rings. Stack them. Of course, dont stack the ones with the plastic center. Use a plain one on top.

I cant answer your other questions without seeing what you have.

[Randy Anderson]

1. The top of the flange should be above the level of the floor by at least an 1/8 of an inch.

1. You can add another flange extension ring. Make sure you use a seal ring between the flange extension rings. Some mfgs include a "rubber" ring to seal between but you could also use part of a wax ring. Key thing is to get a good seal.

2. Connection between.. If you can use a wood screw to hold the flange extenders tight to the floor that would be the best but it is also ok just to install long flange bolts.

1. I don't recommend 2 wax rings.. I have seen to many of them get off center and end up blocking the line.

Randy