[CurlyDave]

...If that was true, the arid countries without water would have no people now...

People are constantly being replenished by unskilled labor which enjoys the work. Even in arid areas.

I suspect a lot more people die from dirty water than from total lack of water.

[ConsCA]

“I suspect a lot more people die from dirty water than from total lack of water.”

Dirty water is much easier to fix.

I may actually buy one of these devices - it’s cheap. If anything, I have a yard ornament with it’s roots 6 feet under.