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Produced by Aqueous Solutions, this simple booklet provides a clear overview of the Biosand Water Filtration System (300L per day) and how to build and use it.

English Version (2022)

Thai Version (2016)

Lao Version (2016)

Burmese Version (2016)

Sinhala Version (2016)

 

 

Publication Details

  • ECHO Asia Library: TA.030, BC.127