A friend and I did this a couple of times during fasts. Out here they try to sell you on the "local water can change it so and so color, this disease can turn it so and so color". Anyway, I was skeptical but interested as I trusted the person with the machine. We used our own store bought pure water, and our water colors were totally different and in line with the ailments that we knew were effecting us, and totally unknown to her. So I wonder about it. But at $25 to $50 a pop per treatment, or 2K for the unit, a poor kid has to pick his battles. Keep us informed.