I am installing a Mustee 3060L acrylic shower pan in my basement bathroom. This will be installed on concrete.
I am having a challenging time figuring out how exactly go go about installing this. The "manual" says use silicone between the pan flange and the studs to eliminate squeaking. It also suggests using a thinset mortar if the pan is not level. No marks or pre-drilled holes on flange.
Is the mortar necessary if the pan is completely level.
How should I go about fastening it to the studs, if at all?