Water supply lines in concrete subfloor - can u do this?
I would like to turn half bath on first floor (multi level home) into full bath, but that part of house sits on concrete subfloor. The main stack would be easy to tap from the new tub area, just have to trench 5 feet of concrete floor. Can I also run water supply lines in the trench(under re-poured concrete) to the tub, and if so, copper or pex? Running lines on one wall is not an option because it is exterior, the opposite wall has the doorway opening and going overhead and back down seems stupid. Any input?