How do I vacuum my Hayward pool pump?

How do I vacuum my Hayward pool pump? Keeping water in hose, place hose end over SKIM-VAC hose connection. Insert SKIM-VAC into skimmer and firmly place over basket. Hold SKIM-VAC in place until all air is evacuated from vacuum hose. Once the air is removed, the pump suction will hold the SKIM-VAC firmly in place.