You must be in the Woodinville area. I checked out Clearwater Spas in their Bellevue store. It was one of the first dealers I looked at. They told me the same stuff about the water only needing to be changed once a year etc. I think the Genesis is just their name for the purification or "chemicals" that they use. Every manufacturer has their own system, or name for the system they use. If Clearwater is one of the first places you have looked I would urge you to look at the other dealers in the area so you can get an idea of the different spas out there. I checked out Jacuzzi, Caldera, Hot Springs, Cal Spas, Artesian and Sundance in the general area before I made my choice. You may find that the Clearwater is the one for you, but it's good to do dry and wet tests of models you are interested in.