ISI has been fielding many project inquiries where there is a want for protection against either debris or sediment accumulations around both cone and cylindrical screens. See the below photo and video of a “water backwash system” that is used to remove material from along the brush of a T screen. This system uses a submersible pump housed inside the screen which uses screened water to create a sweeping flow along the external brush. The water backwash system dislodges material that may accumulate on the brush and the flow of the river moves the suspended material down stream. Operation frequency and duration of this water backwash system is controlled by our screen PLC.