You're trying to tell me that water that falls from the sky has no impurities?
I'm telling you it is distilled. I said nothign about impurities.
Anything distilled may contain impurities depending on what happens to it after it is distilled.
Agreed. Distillation is a process, nothing more. Purity of the cuts is solely dependent upon the efficiency of the apparatus, the raw materials, and other factors.