shower liner

Long story short, I have a PVC shower pan installed with the mortar bed installed over it. I ripped out my shower curb and plan to make it into a curbless shower. I would like to seam the shower pan to a fluid-applied waterproofing membrane I plan to install over the concrete in the remainder...

I have been asking around and been receiving mixed answers. The companies tell you yes, members tell you no... Also having mixed answers on pre slopes. Some will say to do a slope use one of the products above and tile over. Others will tell you pre slope, liner, slope and then tile. How...