Changes

Charcoal filter / Activated carbon

173 bytes added, 04:57, 10 July 2012

→‎Reference manuals, videos, and links

==Reference manuals, videos, and links==

* [http://bluenews-blueenergy.blogspot.com/2011/05/low-tech-coconut-shell-activated-carbon.html Low-Tech Coconut Shell Activated Carbon Filter.] Blue News, 5/17/2011.

* [http://janderson99.hubpages.com/hub/Best-Water-Purifiers-are-Cheap-Graphite-Coated-Sand-Grain-Filters Best Water Purifiers are Cheap Graphite Coated Sand Grain Filters.]

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