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Leveling the onyx pan


Posted 2 years ago

I used shims to get my pan perfectly level with no rocking.  This took some effort.

I have seen some instructions that say to use thinset to build up and level out the area under the pan, but your YouTube video shows shimming and using door/window expanding foam.
Does the foam add support under the pan, or does it simply fill the voids for a less hollow sound?


Adam Harpe

Posted one year ago


The expanding foam to going to fill the voids where the shims are not giving the shower pan more support. The other thing that is achieved is that your pan is now somewhat bonded to the subfloor or concrete. Unlike thinset, the expanding foam will allow a little movement from the house shifting as well as expansion and contraction from heat from hot showers, 




Posted one year ago

Does the base slide around on the expansion foam when you first set it?

Adam Harpe

Posted one year ago


No, the shower pan should stay in place as it is a fairly heavy unit. After you set the shower pan in the expandable foam leave it stay for about 12 hours. This should give the foam plenty of time to set up. 



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