Saw a blaring example of when SODIS should be used. I watched an episode of man vs wild (I know) where he was near Panama I believe. He made a raft and was floating towards Panama (I think). He went to a small island covered in bird feces and found a puddle of stank water, almost a bird dropping mud. He collected it in a plastic water bottle, which I can understand.
Me? I would have filtered it as much as possible through my shirt or sock and let it sit in the sun, he was drifting all day. Good to go, for the conditions.
Bear Grylls? Grab a hose (magically appeared) and give yourself an enema with the stank water while citing some bizzare sea disaster (disASSter) where people adrift had to do the same thing with rainwater collected in the bottom of their boat that had turtle blood and guts in in.
That show is a riot to watch. Have you ever stripped down to your underwear and swam across a lake that was just above freezing to save a mile of walking? Me neither.
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