Biosand Filter Mold Welding Picture Book
This document is a series of photos and descriptions of a welder making a steel biosand filter mold. It is intended to be used alongside the mold fabrication instructions, to help a welder and/or project implementer understand how to construct a high quality mold.
Biosand Filter Mold Welding Picture Book
This document is a series of photos and descriptions of a welder making a steel biosand filter mold. It is intended to be used alongside the mold fabrication instructions, to help a welder and/or project implementer understand how to construct a high quality mold.
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CAWST is a Canadian charity and licensed engineering firm. We address the global need for safe drinking water and sanitation by building local knowledge and skills on household solutions people can implement themselves.