I'm planning a new bathroom with a multiple-head shower. What differences in plumbing should I consider? multiple water lines or can they share a line? Should I increase from 1/2 inch to 3/4 inch supply?
I recently installed a Moen 275 Spa set which has a thermostatic valve (mixer), showerhead, body jets, and a handheld. However, you can buy the mixing valve separately. Each function (showerhead, body jets, and handheld) has its own shutoff valve. I don't see why this couldn't feed two showerheads instead. The supply lines to the mixing valve are 3/4". 1/2" can easily come off of the valve to each showerhead. I placed the handheld at the opposite end of the shower (4'x6') for the little lady to use so I wouldn't have to get out from under the big showerhead and bodyjets . I ran one 1/2" line under the floor to the handheld from the 3/4 output of the mixer.
Dave
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