Pump priming is the process of removing air from the pump’s interior by filling it with liquid (usually water) before starting it.
This ensures that the pump can generate sufficient suction pressure to move the liquid effectively.
When air is trapped inside, the density of the liquid-air mixture is too low to create the vacuum pressure needed for proper suction, leading to malfunctioning or failure to pump.
To prime a pump manually, the vent valve is opened to allow trapped air to escape, and once liquid starts flowing from the vent, the valve is closed, confirming that the pump’s interior is fully filled with liquid.Self-priming pumps, on the other hand, do not require manual priming.
They are designed to mix air and water automatically, expelling the air and allowing the pump to operate smoothly once the air has been removed.
