Purified Water

I cannot distill the water myself,luckily those bottled distilled water can be found in supermaret.Well,personally I prefer mineral water,but the question is how many rivers that are clean are there
in China?Distilled water is basically condensed steam so it's pure
water with nothing,no minerals,no germs,no no-trace elements.
Since our bodies need a very tiny amount of those minerals,distilled water problem might not as serious as so called mineralwater.