Hello, This my first post so hi all! For starters I have no plumbing experience. My question involves using a toilet drain for a shower drain on a concrete floor. I really have no other place to put a shower in this building and need to figure out a way I can safely do this. I suppose I will have to bust up the concrete around the toilet drain, put in traps, and then recement around the the shower drain I have created? Any help is much appreciated. Also, the shower will be completely tiled to the floor.