Hi there, My partner and I have recently moved into out first home, and are trying to install hand-held shower heads in our two bathrooms. Both showers have tub surrounds and identical existing shower heads and faucets. I managed to get one shower head apart, but the new heads I want to put on will not fit onto the pipe that sticks out from the wall. If you unscrew it right from the wall, it seems like the pipe might fall right down into the wall behind the surround... I have no idea what to do in this situation, and neither does my partner. I would call in a plumber to give some advice, but I've installed shower heads in apartments before and have had no problems... Any help or advice would be greatly appreciated!