My biggest concern when going on any physically challenging trip for an extended duration is running out of water.
I am wondering if anyone has tried solar distillation of saltwater? If so, what were you results? I've researched several papers and the most scientific paper i've found lists 2liters/m2 in temperate regions under normal conditions (some wind, occassional cloud, etc). Obviously the numbers will vary widely but this solution isn't really meant for winter climate anyway.
I've researched reverse osmosis but those systems seem energy intensive and they foul. Not to mention, what happens when something breaks??
In my experience, there's never enough wood to distill or boil water either. Or everything is too wet and humid to even start a fire.
I want to find a solution for any of the following areas, here's what i've come up with thus far:
Hot areas:
Salt: solar still
Fresh: solar still or sand filter + charcoal or chemical treatment
Cold (or cloudy) areas:
Salt: forward osmosis with sugar, you'd have to bring a membrane with you though, Or maybe skin an animal?
Fresh: sand filter + charcoal or chemical treatment
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