Looking for some advice on what the best setup will be for my scenario.
I want to use a Kohler 3/4 inch inlet 3 way transfer valve to switch between a tub spout, a handheld shower, and a rain head. I'd like to be able to use the handheld and rain head at the same time, each of them are 2.5 gpm.
The transfer valve is 3/4 in and 1/2 out.
Problem: I have 1/2 inch supply lines, so at some point I need to convert to 3/4 to use the transfer valve.
My question: is it better to
1. convert from 1/2 to 3/4 into the mixer valve - Kohler HiFlow PB valve, 13 gpm out, K-2971-KS-NA, then continue 3/4 to the transfer valve (could also use 3/4 thermostatic valve here if it would handle the 1/2 to 3/4 conversion better)
or
2. go 1/2 into the mixer valve - Kohler thermostatic 1/2 inch, 7 gpm out, and convert 1/2 to 3/4 to the transfer valve
The only other solution would be to ditch the transfer valve and use individual volume controls for each output, but my wife isn't interested in having that many knobs on the wall. She barely wanted a third knob for the thermostatic stack.
I want to use a Kohler 3/4 inch inlet 3 way transfer valve to switch between a tub spout, a handheld shower, and a rain head. I'd like to be able to use the handheld and rain head at the same time, each of them are 2.5 gpm.
The transfer valve is 3/4 in and 1/2 out.
Problem: I have 1/2 inch supply lines, so at some point I need to convert to 3/4 to use the transfer valve.
My question: is it better to
1. convert from 1/2 to 3/4 into the mixer valve - Kohler HiFlow PB valve, 13 gpm out, K-2971-KS-NA, then continue 3/4 to the transfer valve (could also use 3/4 thermostatic valve here if it would handle the 1/2 to 3/4 conversion better)
or
2. go 1/2 into the mixer valve - Kohler thermostatic 1/2 inch, 7 gpm out, and convert 1/2 to 3/4 to the transfer valve
The only other solution would be to ditch the transfer valve and use individual volume controls for each output, but my wife isn't interested in having that many knobs on the wall. She barely wanted a third knob for the thermostatic stack.