What issue can occur if a variable-speed pump is not properly monitored?

When a variable-speed pump is not properly monitored, cavitation can occur as a significant issue. Cavitation is a phenomenon that happens when the pressure in the pump drops below the vapor pressure of the liquid being pumped, leading to the formation of vapor bubbles. These bubbles can collapse violently when they move into higher-pressure areas of the pump, causing shock waves and potential damage to the pump components.

In the context of a variable-speed pump, improper monitoring can result in fluctuations in speed and pressure that might inadvertently create conditions conducive to cavitation. Maintaining optimal performance levels through proper monitoring helps ensure that the pump operates within its designed pressure and flow range, thus avoiding these damaging conditions. Cavitation not only impairs the efficiency of the pump, but over time it can lead to severe mechanical failures and increased maintenance costs.

This understanding highlights the importance of regular monitoring and control in systems using variable-speed pumps to avoid cavitation and ensure reliable operation.