How do you bleed air lock?

To bleed an air lock from a system, first turn off the pump or water supply to prevent further air from entering. Locate the highest point in the system or the bleed valve, and open it to release trapped air; water should begin to flow out once the air is released. Once the air is bled and a steady stream of water flows, close the valve securely. Finally, check the system for leaks and restore the water supply or power to the pump.