Did you know... there is a "distilled water" forum on this website ? I mean really, c'mon, on the Iodine forum of all places ??
I think your posting is essentially pointless, other than rain can pick up dirt and gases from the air, that's like, 4th grade science.
We've seen this where people come on here and talk about "distilled water bad" and "distilled water good" and argue and the moderators sometimes move stuff like this out of here quickly. Some people in the past even got all upset about it, lol.