This seems like a silly question but there's some toilet flange spacer kits that include rubber gaskets and I'm wondering if the top gasket needs to contact the toilet on the outside of the closet horn. I would think that it needs to as you wouldn't want any sewer gas leaking out.
The kit I have is below. The very limited directions suggest you don't need to use wax. And by wax I'm assuming that meens a wax ring.
My settup only uses one spacer sandwiched between two gaskets and placed on the toilet flange. Currently there is slightly less than 1/4" gap between the top of the gasket and the surface of the toilet.
Adding a second spacer causes the back of the toilet to lift up off the floor slightly.
It seems that a normal wax ring will get compressed too much and will extrude into the drainage pipe causing an obstruction.
How do I rectify this gap?
- Different extension kit?
- Larger wax ring?
- Remove gasket and add wax ring?
Also, if I remove the rubber gaskets and just use the spacer, do I need to use some sort of sealant between the toilet flange and spacer? If so, what should I use?
- Silicone sealant?
- Plumber's putty?