The manual flushing procedure must be performed independently for both filter sides. To clean one side, its corresponding flush valve is opened, and the handle is rotated at a constant speed. This generates a powerful suction effect through internal nozzles, which vacuums contaminants off the screen and discharges them. The cleaning cycle includes a primary pass as the handle is turned to its limit and a secondary pass as it is returned to the starting position. The process for one side is completed by closing the valve. This entire procedure must then be repeated for the other side of the filter.

Water enters the filter and passes through the fine screen element. During operation, contaminants gradually accumulate on the inner surface of the screen. This buildup restricts water flow, creating a pressure differential between the filter’s inlet and outlet. Manual cleaning is required when this pressure differential reaches 0.7 bar.