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Simple water filter made of a twig

 
Manfred Eidelloth
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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


 
Why does your bag say "bombs"? The reason I ask is that my bag says "tiny ads" and it has stuff like this:
Learn Permaculture through a little hard work
https://wheaton-labs.com/bootcamp
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