Inespensive water filter

John Lipscomb has a video that tells you how to make
a decent filter with two five gallon buckets, grass, sand,
carbon, and lava rock. Cheap!
http://www.survivalistseeds.com/

and alpharubicon shows you how to make a home made
berkey filter. Cost you about 100 bucks

http://www.alpharubicon.com/kids/hom...erkeydaire.htm