What is the recommended way to check for leaks in piping systems?

Performing a pressure test is the recommended way to check for leaks in piping systems because it allows for a systematic and reliable method of identifying leaks under controlled conditions. During a pressure test, the piping system is filled with a fluid (often water) or gas (like air or nitrogen) and subjected to a specific pressure that is higher than normal operating conditions. This enables the detection of even small leaks, which might not be visible or audible during visual inspections or by listening for sounds.

Pressure testing is particularly effective because it can quantify the integrity of the entire system, not just junctions and visible elements. If the pressure drops within a time frame, it indicates the presence of a leak, allowing for targeted repairs.

While visual inspections, listening for hissing sounds, and checking for water stains can provide some information about potential leaks, these methods are not as comprehensive or reliable as a pressure test. They may miss small leaks or leaks that occur in less visible areas of the piping system, which is why pressure testing is considered the gold standard for leak detection in piping systems.