Where do you find potable water during a flood?
One choice - I think - is to use transpiration bags over growing vegetation. It seems to me that this would work when: the weather is hot; there is sunshine; you had the right equipment.
Has anyone out there had any experience with transpiration bags under these circumstances?

Opinions?

I won't get flooded where I live in the high desert, so I don't really have a way to test this!