You need to read John E. U.S. Patents at www.uspto.gov and do a patent number search on it and read it. Why the machine managed to lower or shrink the Prostate gland has to do with the distilled water mechanism which creates ozones inside the distiller device at the same time oxidizing most organic residues. This distiller device is unique but John E. just does not mention this fact in his website. Now we all know ozonated water is great against cancer. But in his machine the ozonation is recycled so much it becomes saturated. Of course, people like me cannot afford John E. machines (I come from a 3rd world country), but Hydrogen peroxide therapy (water) and compressed ozonated water is the only option. Whenever the water is highly compressed there is some truth about the changing positions of the water due to higher peroxide content. The idea of Energized water using the foil is actually and old one using the concept of the Leyden Jar (the website mentions Leydon) and was popular during Ben Franklin days.
Instead of energizing your water you can actually energized yourself using the 9 volts battery. I personally used a 4.5 volts, based on findings from John Crock. This negatively charged water is nothing new, and you can find lots of it in waters from the mountain springs.
Now the weakeness of John E. distiller or all water filtration device has to do with getting rid of certain chemical pollutants, especially fluoride which accumulates in our pineal gland by the order of 100-200 ppm as we get older, destroying our melatonin production and play havoc with our circadium rhythms. If you can afford one. Most RO filtration (Reverse Osmosis) cannot get rid of Fluoride - sorry about that folks.