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I got a new toilet complete with installation kit. The illustrations on the directions appear to say to apply the wax ring around the drain opening beneath the toilet then set the toilet down on the floor over the pipe and apply equal pressure on each side. The illustrations are also drawn in such a way that it appears the wax ring fits perfectly snug around the toilet's drain opening, but the center of wax ring that came with mine is far larger than the opening under the new toilet.

Does it have to fit snug or will it even out and expand once I set the toilet down and apply pressure as instructed?

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1 Answer 1

up vote 6 down vote accepted

The wax ring should seat so that no waste material can get out from around the drain when the toilet is seated on it. When in place, it should look like this:

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Now you may have purchased a wax ring that did not have the gasket built in, like such:

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If so, and you get the sense that leaks are likely to happen, you should go ahead and clean that out and get the flanged kind.

Also, yes, when you apply pressure, it will smoosh out some, to create a seal, but the seal is intended to be between the floor and the toilet - it will not fill in gaps in the drain itself - that's the purpose of the flange.

Hope that helps!

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"you may have purchased a wax ring that did not have the gasket built in". Exactly! When I removed the toilet, there was a gasket already there. I just cleaned it off and reused it since my ring didn't have one. Toilet's installed and working fine! –  oscilatingcretin Oct 10 '11 at 3:02

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