How can corrosion and rust in water systems be prevented?

Using cathodic protection techniques is an effective method for preventing corrosion and rust in water systems. This approach involves applying a low-voltage electrical current to metal surfaces exposed to water, which helps to counteract the electrochemical reactions that lead to corrosion. By creating a protective layer on the metal or by sacrificing a more anodic material, cathodic protection effectively reduces the oxidation of metals, thereby extending the lifespan of pipes and related infrastructure.

Regular chemical flushing can help remove loose deposits and contaminants but does not address the fundamental electrochemical processes that cause corrosion. Increasing water pressure may inadvertently exacerbate leaks and stress in the piping system, leading to further damage rather than serving as a prevention method. Adding more chlorine primarily serves disinfection purposes and may not have a significant impact on preventing corrosion, and excessive chlorine can even contribute to corrosion in certain types of metals. Thus, cathodic protection stands out as the most direct and effective method for limiting corrosion and rust in water systems.