There are various ways a rain shower can be installed. It could have a diverter in the plumbing system that will only allow water pressure to exit from one faucet at a time, or the water will flow freely between two shower heads at once. Reader Andrea has experience with this feature and further elaborates, “I need to be able to switch to the handheld to get rinsed off well, plus after c-sections and a knee surgery, I need to sit and shower…. A handheld showerhead was a must.”