Prepare of raw materials: clay powder, sawdust / ground rice husks, water Mix the raw materials to form a malleable paste: clay powder, sawdust / ground rice husks, water Form cubes of clay for the press Press the clay cubes to turn them into the filter shap Finish the surface and mark / number each filter Dry the filters - to remove the initial excess water finishBaking the filters in an oven - to complete dehydration and vitrification Flow tests for each filter - for validation or downgrading Colloidal silver painting on the surfaces of each validated filter Package filters
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