Biosand filter
Revision as of 21:38, 22 December 2008 by Marktielewestra (talk | contribs)
Revision as of 21:38, 22 December 2008 by Marktielewestra (talk | contribs)
Biosand Filter manual
This manual provides a detailed and highly visual instruction set to building a biosand filter.
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External links
- Organisation http://biosandfilter.org/biosandfilter/