I am trying to remodel my bathroom and my wife would like to put in another hand held shower wand and I would like a fixed head shower unit. We have a shower/tub diverter and a single knob volume and temperature control valve. I figured that when I am retiling the walls I could re-do some of the plumbing. I thought that I could get a second diverter valve that I could install after the temperature/volume control valve to control the operation of the two different shower heads. Is there any recommendations out there? Most of the diverter valves that I have seen are just a simple lever diverter valve. There are some that I saw that were called two way same time diverer valve. Is it possible to have a diverter valve that would also let me control both heads at the same time? I am afraid of the lack of water pressure that would result. We have great water pressure now.
Depends on the size of the pipe feeding the bathroom. There is only so much water you can force thru 1/2" pipe, which is often what is installed in older houses. For multiple shower heads you should have at least 3/4 all the way from the entrance.