What does "overhead storage" refer to in water distribution systems?

"Overhead storage" in water distribution systems specifically refers to tanks or reservoirs that are placed at elevated positions. The primary function of these elevated tanks is to utilize gravity to feed water into the distribution system, generating the necessary pressure for water to flow through the pipes effectively. This setup not only helps in maintaining consistent water pressure but also ensures a steady supply of water, especially during peak demand times.

The elevated position of these tanks allows gravity to assist in the distribution process without relying exclusively on pumps, which can be more energy-intensive. Consequently, leveraging gravity in this manner is a fundamental design aspect of many water distribution systems, contributing to their efficiency and reliability.