High flow disc filter

A filter device configured to filter a liquid, the filter device comprising:

• a drum sized to receive the liquid;
• a plurality of filter panels coupled to the drum to define a plurality of discs, each filter panel of the plurality of filter panels comprising a perimeter frame defining a panel flow area and a filter media coupled to the perimeter frame, the filter media of at least one of the plurality of filter panels including a plurality of pleats and at least one reinforcing member configured to maintain a pleated shape of the filter media;
• and
• a plurality of spray bars positioned between adjacent discs and each end of the filter device, each spray bar of the plurality of spray bars comprising a plurality of spray nozzles configured to spray water in a reverse flow direction through the plurality of filter panels, each spray bar of the plurality of spray bars including multiple spray points, with four spray nozzles of the plurality of spray nozzles at each of the multiple spray points,
• each spray nozzle of the plurality of spray nozzles having an outlet orifice angled in a direction substantially normal to a pleat of a disc and angled at about 90 degrees with respect to the outlet orifice of an adjacent spray nozzle of the plurality of spray nozzles at the same spray point.