"Your water calculations for collecting from a house are way high."

"And what about growing food or raising animals? Cause any area thats devoid of water is also devoid of economic investment and commerce. Which means you'd have to be pretty self sustaining."

EXACTLY! Even my good-case scenario wasn't enough, was it?

There are places in the world where they would fight over the 2-5 gallons of clean drinking water we use to flush half a cup of urine.

Back when I lived in SoCal, I wondered if ever there was an good earthquake that wiped out the transport of water from the Colorado River, how long it would take to empty the place.

Sue