So I have a bathroom in the basement and was wanting to redo it and put a shower pan in, it has a shower but it uses a floor drain, and all videos iv seen seem to be having PVC pipe or something protruding up to connect to a showerpan, so I'm not sure how that works. The bathroom right now is bare ( concrete floor, cinderblock walls, toilet, sink, and the shower over a floor drain) also the drain is in a corner but it's a lil offset and I dont think the pre cut ones from home depot would line up with the drain, I haven't gave it much thought yet but I suppose that's all that's in my way is this drain...maybe just tile the whole bathroom instead, it's not too big