I was wondering if anyone had a suggestion of where to go to get detailed manuals on how to finish a basement bathroom that has all the drain system in place. I was not sure how to install a toilet flange in the exsisting floor and how I might install my shower that it drain does not match where the drain pipe is in the floor. I can not move my walls so how should I get the drain from the shower to the drain pipe? Should build up the one piece shower so their is room under it to run PVC pipe. ANy suggestions or places to get detailed manuals on how to do this project would be greatly appreciated. I need to do this project myself.