Changes

Biosand filter

12 bytes added, 19:38, 22 December 2008
no edit summary
This [http://www.biosandfilter.org/biosandfilter/files/webfiles/BioSandFilter_Construction_Guidelines.pdf manual] provides a detailed and highly visual instruction set to building a biosand filter.
 
{{Joinus}}
== Movie ==
Akvopedia-spade, administrator
3,247
edits