What valve should be opened on the gated intake to allow air escape before water supply flows?

The bleeder valve is designed specifically for the purpose of allowing air to escape from a system before the water supply begins to flow. When a water supply is being established, especially in a pressurized system, it's crucial to remove any trapped air to prevent disturbances in water flow and potential damage or inefficiencies in system operation.

Opening the bleeder valve releases the air, ensuring that the intake is primed with water and reducing the risk of air pockets, which can lead to issues such as water hammer or inadequate flow. This valve acts as a vent, promoting smooth and efficient operation of the piping system.