What is the purpose of a water main grid?

A water main grid is designed to create a network of interlocking mains, which ensures that water is distributed efficiently and reliably throughout a given area. This grid system allows for multiple pathways for water to travel, which improves redundancy. If one section of the grid fails or is under maintenance, water can still be rerouted through alternative mains, ensuring that consumers continue to receive water without interruption.

Implementing a grid system also supports fire protection, as it provides multiple high-capacity routes for fire flow, allowing firefighters to draw large volumes of water during emergencies. Additionally, the grid can help balance water pressure across the network, preventing significant drops in pressure that could affect service delivery.

In contrast, focusing on other elements such as supplying water from a single source, regulating water pressure, or filtering water contaminants does not capture the essential characteristic of the water main grid's design and operational purpose.