Posted: Fri Apr 17, 2009 11:16 am
Here is a neat guide to water filtration...
http://www.rei.com/expertadvice/article ... untry.html
As you scroll down, it compares various ways to filter/purify water.
http://www.rei.com/expertadvice/article ... untry.html
As you scroll down, it compares various ways to filter/purify water.