I'm putting a shower in the basement in an area where the floor already slopes towards an existing drain. I'm wondering what the recommended installation procedure is here? I'm assuming I can skip the pre-slope since the floor is already sloping towards the drain? Would I proceed with the PVC or CPE liner directly on the floor and then the top layer of deck mud?
Is it at all acceptable to use a clear coat sealer on the concrete instead of the plastic liner and then install ceramic tiles directly on that?