I am installing a new shower setup. I want to install a fixed shower head as well as a hand held personal shower with hose. On the Kohler website they sell a diverter valve with some sort of backflow valve for this purpose. I have a friend who just had this done and he has no diverter valve just 2 shower heads with on/off buttons. I think I'd rather go with the diverter valve. How do I do this?
