I have recently purchased a Kohler Tresham shower base with bench. I read the directions very carefully, and at step 4 (you can see the guide here: https://www.us.kohler.com/webassets/kpna/catalog/pdf/en/1161835_2.pdf ) it says to use "mounds of floor-leveling compound at the base feet."
This must be a mistake, because everywhere I look online, floor-leveling compound is a very thin compound that will run like liquid. There would be no way to make it into mounds.
So my question is, what product should I really use to make self-leveling mounds like this that will provide an adequate sub-base for this shower? Please let me know what brand and name. Please also check out the link above for the instructions; it's pretty short and you'll see #4, which is where I'm confused.