Describe the role of a water tank in a distribution system.

A water tank plays a crucial role in a distribution system primarily by storing water and maintaining pressure within the system. This functionality is essential for ensuring a consistent supply of water to consumers, particularly during peak demand periods. By holding a reserve of water, the tank can help accommodate fluctuations in usage and ensure that adequate pressure is maintained throughout the distribution network.

Maintaining pressure is vital because it not only helps deliver water efficiently to homes and businesses but also minimizes the risk of contamination by keeping the water flowing and preventing stagnation in the pipes. The tank can act as a buffer, allowing for the separation of the water source (like a well or treatment facility) from the distribution lines, which further stabilizes the pressure across the system.

In essence, the storage aspect enables the system to respond effectively to varying levels of demand, while the pressure maintenance helps preserve water quality and ensures reliability in service delivery. This functionality is an integral part of how water distribution systems are designed and operated.