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Simple water filter made of a twig

 
Manfred Eidelloth
Posts: 69
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posted 11 years ago
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Removes 99% of coli bacteria:

http://web.mit.edu/newsoffice/2014/need-a-water-filter-peel-a-tree-branch-0226.html


 
We must storm this mad man's lab and destroy his villanous bomb! Are you with me tiny ad?
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