TOM'S TECH TIPS
THREE FUNCTION GROHFLEX
If you spec the GrohFlex shower valve system, you already know that it offers you and your clients a lot of shower design flexibility. It is available in multiple trim styles, it can be specified with either thermostatic or pressure balance control options, and it is offered with outlet ports for one or two functions (shower heads, hand showers, or tub spouts). All from a single rough-in valve!
Furthermore, if it is supplying shower heads that flow 2.0 gallons-per-minute or less, GrohFlex is CalGreen compliant, because it is designed with an "either outlet A or B" diverter system, rather than a "both A and B" system (flowing to two outlets simultaneously is not CalGreen compliant.)
But there's more. Did you know that you can also design a fully CalGreen-compliant GrohFlex shower system with three functions? I know it sounds too good to be true, but it's a fact. This is how:
Boom. Three-functions. It might be a little hard to visualize at first, but if you check out this presentation, you can find a diagram that illustrates the layout.
Apply what you learned: According to the illustrations of the three function GrohFlex shower system in the presentation, which outlet port should the hand shower be piped to, top or bottom?