AWI Phoenix Backwash Troughs are designed, built and installed for municipal and industrial water treatment facilities. Fabricated from Stainless Steel or molded from fiberglass reinforced plastic, the Phoenix Backwash Trough has a design that can be adapted and installed into all filter configurations. Each trough is equipped with adjustable weir plates to provide even flow distribution into the trough during collection of the backwash water after media cleaning.