[Turtle]

Originally Posted by HydrogenBond

If I was to improvise something it would be dilute chlorine water drops and a charcoal filter. The chlorine will kill micro-organisms and the activated charcoal filter will take out the chlorine as well as flavors and odors.

Activated charcoal also removes radiation & pesticides I hear.
Don't forget the tried & true technique of boiling.

[Jay-qu]

on camp in the outback we used river water but slipped a few drops of Iodine into it and then your set to drink (tasted a bit funky though)

[UncleAl]

Amazon.com: Survivor 06 Water Maker Reverse...
Amazon.com: Survivor 06 Water Maker Reverse...

[Turtle]

Originally Posted by UncleAl

http://www.amazon.com/exec/obidos/tg...72023?v=glance

So reverse osmosis. Unfortunately they say out of stock on this item. What's in this thing? Porus membrane? Accessing...

http://www.freedrinkingwater.com/infocenter.htm

[orbsycli]

way too expensive.
I'll try the GSE.

[Michaelangelica]

Originally Posted by orbsycli

what are some non-expensive ways to purify water?

Solar stills? A version of one was once put in all ship life-boats.

If you go to your ship chandler you might be able to buy a hand operated osmotic pump. This filters sea water or brackish water using hand action