Abstract: An air escape valve for a water line having a float switch mounted in a chamber connected to the water line. The float switch is connected to a solenoid valve that controls an air escape passageway from the chamber. The float switch is moved to the contact closed position and the solenoid valve to the valve closed position when water flows normally in the water line with sufficient water flowing into the chamber to raise and hold the float switch to the contact closed position. When enough air has entered the line to impede water flow, the water level in the chamber drops allowing the float switch to drop out of its contact closed position. This opens the electrical circuit to the solenoid so the solenoid valve no longer remains in its valve closed position, but moves to its normally biased valve open position. The air escape passageway is then open to allow the built-up air to escape, whereupon the water flow can return to normal.