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Pressure testing is a reliable method of testing all types of pipework, including central heating, underfloor heating, mains, hot and cold, to ascertain if there is a leak. The pipe work is normally pressurised up to 1.5 times its approximate working pressure, but this is dependant on the type of pipe and its condition, and the pressure then monitored. A drop or loss in pressure indicates a leak is present. If the pressure holds it indicates no leak is present.
If the pressure testing confirms there is a leak on a specific pipe then the specialist equipment (Gas Tracing, Acoustic Microphone, Thermal Imaging) is then used to locate the leak.
Pressure testing is also used after the leak is located and repaired to ensure the repair is sound and to check for multiple leaks.