Raw sewage enters the plant at the Screen Building via a 42-inch diameter gravity
sewer. A trash rack and three mechanically cleaned bar screens remove large solids from
the influent. The flow then passes through the grit channels located adjacent to the
Screen Building.
Heavy inert solids are removed from
the grit channels by mechanical grit collectors and pumped to cyclone degritters and grit
washers located within the building.
