What is a water main?

A water main is defined as a principal pipe that delivers water to service lines, making it a critical component in a water distribution system. Water mains are typically larger, high-capacity pipes that transport treated water from the water treatment plant to various areas within a community, ensuring that adequate pressure and flow are maintained for distribution to homes, businesses, and fire hydrants.

This infrastructure is essential for providing a reliable water supply for everyday use, including drinking, cooking, and sanitation. Understanding the role of water mains is fundamental to managing and maintaining the efficiency of the water distribution system. The other options refer to different types of pipes with distinct functions: smaller pipes link water mains to individual properties, wastewater pipes handle sewage, and temporary supply lines are used during construction projects.