toilet install warm-up
I have used plastic rings for years and lately have began to have problems with the recess around the toilet outlet being too shallow. In some cases the plastic flange actually holds the toilet up off the floor without even having a wax ring installed. I had an engineer from a very well known toilet manufacturer tell me that was so the flange could be installed during rough in and then the underlayment for the flooring installed, leaving room for the wax. I know many people do it this way, but if hardwood or tile is installed around (and sometimes over) an already installed flange, it often leaves a bigger gap than a wax ring is designed to fill. There are spacers made for this purpose but they just create more opportunities for a problem.
Plastic flanges are also pretty bad about breaking if the toilet bolts are overtightened. They even make several products specifically designed to repair broken plastic flanges, so it's a fairly widespread issue. The other side of the coin is that a metal flange requires the installer to be more careful when tightening the toilet bolts so the toilet doesn't crack.
The bottom line is that although I've used plastic flanges for years, apparently many toilets now don't work as well with them as in the past. An easy way to check this is to turn the bowl upside down, hold a flange in place and lay a straight edge across the bottom of the bowl. You should have 1/8" to 1/4" space between the bottom of the flange and the straight edge. This will allow the wax to properly seal the toilet to the flange when it is installed.
Check out my goofy video for my new
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