Ok, let me try it another way then - I've got 2 glasses of water in front of you and 2 identical digital TDS meters; I dip the TDS meters into the glasses of water, 1 in each glass; 1 meter reads 142, the other reads 0. Million dollar QUESTION: Which water would you like to drink?  (Realize that as early as my first comment here I've already dismissed the argument of tap vs. bottle - people who want THAT argument can read the article; I'm moving past that to a new and I think more salient question: are you satisfied with your tap water?)