You're trying to tell me that water that falls from the sky has no impurities?
I believe he's referring to the fact that rain water starts as ground water, goes through an evaporative process and then precipitates from air from condensation, a process similar to distillation.
Progressives are the most open minded, tolerant, and inclusive people on the planet, as long as you agree with everything they say, and do exactly as you're told.
