[laverda]

Why not use the waste water for your drinking water. The first two filters are better then any refrigerator filter will be. I have heard drinking lots of pure RO/DI water can actually be hard on your stomach, as it has no minerals at all. I don't have any facts to back that up, but in does make some sense, as pure RO/DI is supposed to be the most universal acid there is. By that I mean it dissolves more materials then any other acid. That is how it has picked up all the minerals, salts and everything else we strip out for our fish. I would love to see some real facts on this.