What should be done to prevent contamination in a water distribution system?

Regular disinfection and testing are critical practices for maintaining the integrity of a water distribution system and preventing contamination. Disinfection involves the use of chemicals or processes, such as chlorination, to eliminate pathogens and other harmful microorganisms that can cause waterborne diseases. This proactive approach helps ensure that the water remains safe for consumption throughout the distribution network.

Additionally, routine testing of water quality is essential. It allows for the early detection of contaminants, enabling prompt corrective actions to be taken before any health risks arise. By consistently monitoring water quality and maintaining appropriate disinfection practices, the likelihood of contamination is significantly reduced, promoting public health and safety.

Other methods, like increasing water flow or decreasing tank pressure, may impact the system's efficiency or pressure balance but do not necessarily address the primary concern of microbial contamination. Similarly, adding more chemicals without proper testing can lead to imbalances in water quality and potentially introduce new issues rather than resolving them. Thus, ensuring regular disinfection and testing represents the most effective strategy for safeguarding the water distribution system from contamination.