I've got good news and bad news. The good news is that while I was gone on a mission trip, my parents paid to have my new basement shower tiled. It looks great! the bad news is that I had not installed the correct elbow fitting for the shower head and now there is just a piece of PEX pipe sticking out through a 1 inch hole in the tile. Does anyone know how I can install the shower arm without being able to access the wall behind the tile?