What must you ensure before conducting a pressure test on a sprinkler system?

Before conducting a pressure test on a sprinkler system, ensuring that all system components and connections are watertight is crucial. This step is necessary to confirm that there are no leaks present in the system before it is subjected to high pressure. If the components and connections are not watertight, the pressure test could cause water to escape, resulting in inaccurate test results and potentially damaging the system. Conducting the test with integrity throughout the system is essential because it verifies the reliability of the connections and the overall functionality of the sprinkler system once it is operational.

While having valves open, the system filled with water, and being free of leaks are important considerations, the primary focus before a pressure test revolves around the integrity of the system. If components are not watertight, you cannot accurately assess the system's performance under pressure, which may lead to further complications if left unaddressed.