What is the purpose of cathodic protection in water systems?

The purpose of cathodic protection in water systems is primarily to prevent corrosion on tank surfaces below the water line. This technique is crucial because corrosion can lead to significant structural damage, leaks, and failures in water storage tanks and distribution systems.

Cathodic protection works by providing a sacrificial anode or by applying a small electrical current that makes the metal surface of the tank act as a cathode, thus preventing it from undergoing corrosion. This protection is particularly vital for submerged components that are susceptible to the corrosive effects of water, environmental factors, and biological activity.

Enhancing water quality, improving water flow rates, and monitoring water temperature do not directly relate to the function of cathodic protection. While these aspects are important for overall system management, they are not the focus of cathodic protection, which is dedicated to maintaining the integrity of metal infrastructure in water systems.