This document contains drawings and instructions for constructing CAWST Version 10 biosand filter molds with no ledge for a diffuser plate. This mold will produce filters that must be used with a diffuser basin that hangs from the top of the filter, as there will be no ledge or lip inside the filter on which to sit a diffuser plate.
This document contains drawings and instructions for constructing CAWST Version 10 biosand filter molds with no ledge for a diffuser plate. This mold will produce filters that must be used with a diffuser basin that hangs from the top of the filter, as there will be no ledge or lip inside the filter on which to sit a diffuser plate.
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