Stored water can fulfill several functions. Which of the following is NOT one of them?

Stored water serves multiple essential functions in a water distribution system, contributing to its overall efficiency and reliability.

One key function is meeting sudden demands, which is crucial for addressing unexpected or peak usage periods without compromising water pressure or availability. Stored water ensures that there is a reserve that can be drawn upon instantly during high-demand times.

Another important function is pressure maintenance. Water storage helps maintain consistent pressure throughout the distribution system, ensuring that water can reach all parts of the network effectively, especially during peak usage when demand might exceed the immediate supply capabilities.

Additionally, detention or contact time is essential for processes like chlorination. Adequate storage allows disinfection chemicals time to react with the water, ensuring that pathogens are effectively eradicated before the water is distributed.

While providing power backup might seem like a relevant function, it is not a direct role of stored water itself. Instead, that function would typically relate to a power source's ability to operate pumps or treatment facilities. Thus, it does not fit within the primary functions fulfilled by stored water.