What role does the water meter play in a distribution system?

The water meter is a crucial component of a distribution system as it accurately measures the volume of water consumed by a customer. This measurement is essential for billing purposes, allowing water utilities to charge customers based on their actual usage. By tracking water consumption, meters also help in monitoring system performance and detecting leaks within the distribution network, which can be critical for maintaining water quality and supply efficiency.

The other options highlight functions that are not performed by a water meter. Regulation of water pressure is typically managed by pressure-reducing valves or water storage tanks, while filtration and disinfection processes are handled by treatment facilities designed specifically for these tasks. Thus, the primary function of the water meter remains focused on measuring water usage, making it a key tool in efficient water management.