One major manufacturer recommends the following cleaning schedule for a flooded- bed dust collector: (1) Twice each shift: Clean filter with water. (2) Once each shift: Replace filter with cleaned filter. Back-flush dirty filter with water and allow to dry. When dry, shake remaining dirt from filter before reusing. (3) Daily: Wash inlets and ductwork with water. (4) Weekly: Wash venturi, sump, and demister module