How can you avoid loss of suction in a pump?

To effectively avoid loss of suction in a pump, several strategies can be employed, each contributing to maintaining the necessary conditions for proper pump operation. Opening the vent cock on the pump allows trapped air in the pump casing to escape, which is crucial since air pockets can impede the flow of liquid and cause the pump to lose its prime.

Using a full tank to keep the pump primed is another key strategy. When the tank is sufficiently full, it helps ensure that there is a continuous and adequate supply of liquid to the pump, thereby reducing the risk of losing suction due to low liquid levels.

Closing down on the tank valve may be necessary in specific circumstances to prevent backflow or unintended drainage, ensuring that the liquid remains in the pump and that suction is maintained.

By implementing all of these practices, a comprehensive approach to maintaining pump operation without the risk of losing suction is achieved. Each individual action plays a distinct role in preserving the pump's efficiency and functionality.