Series 3000 Cooling Towers built in 1991 through 2007 were equipped with inlet strainers located in the Balance Clean® Chamber. The BALANCE CLEAN® Chamber provides a single-point piping connection and automatically balances the flow to both hot water basins. Contact your local BAC Representative for replacement inlet strainers and options, such as winter operation bleed down valves, that prevent freeze-up when the tower is shut down.