What is one method for detecting leaks in a water distribution system?

Pressure testing is a reliable method for detecting leaks in a water distribution system. It involves pressurizing the pipes and monitoring the pressure levels over time. If a leak is present, the pressure will drop, indicating that water is escaping somewhere in the system. This method is effective because it not only helps identify leaks but also provides information about the location and potential severity of the issue based on how much the pressure drops.

This technique is commonly used because it is systematic and can be applied to various components of the water distribution system, including mains and service lines. Moreover, pressure testing can help ensure the integrity of the infrastructure before the system is put into service or after maintenance work is completed.

Other methods, while useful in certain circumstances, do not provide the same direct measurements of leak presence as pressure testing does. For example, flow measurement techniques are beneficial for overall system analysis but may not pinpoint where leaks are occurring. Visual inspection can identify obvious surface issues but may miss hidden leaks. Thermal imaging is good for detecting temperature variations caused by leaks, but it may not always show the exact location of water loss. Pressure testing stands out because it directly evaluates the integrity of the system through quantifiable changes in pressure.