What is a common reason for using a flow meter in a water distribution system?

Using a flow meter in a water distribution system is primarily aimed at tracking water usage and detecting leaks. Flow meters measure the amount of water flowing through a pipe over a specific period, providing valuable data on water consumption and identifying discrepancies that may indicate leaks in the system.

By closely monitoring the flow rate, operators can compare current usage against expected patterns, making it easier to spot irregularities that might suggest system inefficiencies or undetected leaks. This capability is essential for maintaining the integrity of the water supply, ensuring that resources are managed effectively, and minimizing waste.

The other options do not align with the primary function of a flow meter. Measuring electricity consumption pertains to energy management, verifying water pressure involves different instrumentation, and filtering water contaminants is a separate process that uses different technologies, such as water treatment systems. Thus, the correct choice highlights the flow meter's role in water management and conservation efforts within the distribution system.