Hydrostatic Pressure Testing is primary technique used to testing for leaks and evaluating the structural soundness of boilers, tubing, pipelines, metre skids, compressed gas cylinders and other pressurised vessels. The process involves adding water to the system, pressurizing it to a pressure higher than the Maximum Allowable Working Pressure (MAWP), and then keeping and checking for leaks for a specified time period to look for visible or detectable signs of leaks