Scott, I really am surprised that you would dismiss an opinion from Dr. Mercola, he is an educated man in the alternative health industry who doesn't just throw information around. I value his opinions on health care. Futhermore, I think there is some excellent research that shows that distilled water is not for continuous use.
Can the Hanna meter pick up on other metals in the water besides Colloidal Silver ?
"Note 3. TDS meters (and EC meters such as COM100 below) cannot distingish between silver ions and various other types of impurities, so to use them for measuring Colloidal Silver you must start with pure water."
Personally, I think it is one-sided NOT to look at these VALID concerns over the use of distilled water, especially when those who are seeking to learn are sick and diseased!!!