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ctt · Nov 30, 2007, 08:54 AM

I had a leak around my toilet flange, I pulled out the carpet and toilet and the flange is in fine shape. I intend to do a light remodel of the bathroom. The first thing I want to do is to install a slightly larger vanity and move the center of the vanity over a few inches. The result will be that the center line of the sink will move approximately 6" - 8" to the side. Do I need to make any special considerations for this move when connecting to the drain that is, obviously, not moving with the vanity?

How does one install backerboard around a toilet drain? If you leave any space between the flange and the backerboard and you have a leak, won't all of the water go straight to the subfloor without giving you water on the tile to indicate that there is a leak? I was going to install a flange extender, but this only increases the height of the flange. Do I need to remove the current flange, install tile, then install a new, deeper flange?

Thanks in advance for the help.

speedball1 · Nov 30, 2007, 10:10 AM

Do I need to make any special considerations for this move when connecting to the drain that is, obviously, not moving with the vanity

The trap will swing a few inches but not that much. You will need to add a 45 degree elbo to the stubout This will point you toward the vanity drain and you can plumb to it.

If you leave any space between the flange and the backerboard and you have a leak, won't all of the water go straight to the subfloor without giving you water on the tile to indicate that there is a leak?

If the flange is secured to the floor that's all you'll need. The wax seal will provide all the protection that you will need. If you should spring a leak the water going to go down to the sub-floor no matter how much backerboard you install. Good luck, Tom

ctt · Nov 30, 2007, 10:15 AM

Originally Posted by speedball1

If the flange is secured to the floor that's all you'll need. The wax seal will provide all the protection that you will need. If you should spring a leak the water gonna go down to the sub-floor no matter how much backerboard you install., Good luck, Tom

I was more concerned with being able to know there was a leak than keeping the water from the subfloor. Since the tile and backerboard are going to raise the floor level relative to the flange, do I need to use one of the extra thick wax rings, install a flange extender, or do anything else additional?

Thanks for the help!

speedball1 · Nov 30, 2007, 11:33 AM

Since the tile and backerboard are going to raise the floor level relative to the flange, do I need to use one of the extra thick wax rings, install a flange extender, or do anything else additional?

If you will look at the bottom of the bowl you will see a horn that should extend past the flange a bit. This directs the discharge, however if you're concerned get a wax ring with a funnel. Good luck, tom