I have installed a Moen exact temp shower. Thermostatic valve and two volume valves one for the shower head and the other for the handheld. My problem is that my handles are not orientated in the position that I want them to be in. My handle on the left points to the left when off and down when on, which is the position that I want it to be in. This will not work with the handle on the right as the valve is set up so the off position is at six and the on position is at 3. How do I adjust this, I have not been able to locate any information from the Moen website, hoping one of you will have the answer for me. I'm thinking its a cartridge adjustment but just unsure how to go about that.