What type of testing should be done to ensure the integrity of a water distribution system post-repair?

Hydrostatic testing is the standard procedure utilized to ensure the integrity of a water distribution system after repairs have been made. This testing involves filling the system with water and pressurizing it beyond normal operating levels to check for leaks or weaknesses in the pipes, valves, and joints. By exposing the repaired sections to a controlled pressure, operators can confirm that they can withstand the pressures encountered during normal operation without leaking or failing.

This method is essential because it allows for the identification of potential vulnerabilities that could lead to future failures or contamination issues. Additionally, hydrostatic testing can help verify that any repairs or replacements have been correctly installed and are functioning as intended.

While visual inspection provides valuable information about the physical condition of pipes and fittings, it cannot detect hidden problems such as small leaks or weaknesses under pressure. Water quality testing is critical for ensuring the safety and purity of drinking water but does not assess the physical integrity of the system itself. Electromagnetic testing is used for different applications, such as locating underground utilities, and is not specifically relevant for assessing the integrity of water distribution system repairs.