There are inexpensive flashlights that do not require batteries ever. On Ebay... you shake them and they light. We use one upNorth all the time. (batteries tend to explode up there in the cold over winter).
Also you can get a cheap crank radio too. Ebay has lots of stuff in this vein fairly cheap...at times. So take a look there.
The PUR pitchers will purify up to 99.99% for organisms and that is what we do up there for water. Double filter, in fact with 2 pitchers. Water IMO is the worst thing to plan for.
You might find this website interesting:
http://www.katadyn.com/usen/
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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