I agree that it is a scam. I did a lot of research before buying my system. When I emailed Fred (cause I wanted to believe in this ewater thing (he is either the founder, he makes himself sound like it) http://www.ewater.com
He was very defensive. I showed him pictures of the exact same unit for a waaay cheaper price. It only "neutralizes" chlorine because it filters it (in the whole house system). The truth is Sun Systems, Inc. made the unit and chose Aquasana as their distributor. But Sun Systems, also sells the systems as generic/ no name part and products to other people.
Fred (sorry I forget his last name Van Lieu or something). Anyway, when I confronted him about it he had the nerve to say Sun Systems copied his unit! Not true and he charges so much more, for his supposedlu "reduced" price. Throw a couple of towers in your pool and measure chlorine before and after.
Also, you will notice that he says the WWF neutralizes chlorine (really filters) and doesn't say it neutralizes fluorine, why? Because filters are not as successful with fluorine as they are schlorine. Other water companies list statistic on all metals and what percentage of metals and contaminants are removed by their product. He doesn't. I bought an e-mug just because it was cheap and I wanted to see if anything was different. I notice nothing. They are said to reverse the spin of water and thereby raise the ph. Do a before and after on the ph.