H2o essential to growth ,

I am wondering what is the best. for growing marijuana, distilled or spring.well water from wells or artesian wells then you have municipal which comes from resevoirs while are many miles away,and almost always containe clorine which is a poisen.Also you have rain water which is in barrels or well water or artesian water. If you are buying water in the markets its spring or distilled.if your choice is distilled you must use nutrients Mg and calcium. this is really hard.Would a master grower please assist, thanks in advance.

It doesn't really matter.

lol, a master grower, who is that??? i saw a pic of a frozen, distilled water crystal. that's when i decided to stay away from distilled...