Check the type and pump capacity of the pump.Note the arrow direction that shows the flow direction on the valve If the pump does not perform optimally, it may be because there is dirt in either the pressure or suction valve. This can be remedied in the following way:Disconnect the power.Unscrew the hose union nut and then remove both pressure/suction valves. Remember gloves and goggles !Rinse the valves thoroughly in water.Then try to blow through the valve against the direction of the arrow.You should not be able to blow through in that direction; if you can, the valve is defective.
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