What is the required pressure to simulate a leak in the testing of UST components?

The required pressure to simulate a leak in the testing of Underground Storage Tank (UST) components is 10 pounds per square inch (psi). This specific pressure is used in various testing protocols to ensure that the UST systems can withstand operational pressures without leaking. Testing at this level allows operators to identify any potential weaknesses in the tank structure or in the connections and piping, ensuring regulatory compliance and environmental safety.

When conducting leak detection tests, 10 psi is considered sufficient for evaluating the integrity of the components. It strikes a balance between being high enough to challenge the system's seals and components without exceeding the typical operational parameters that could lead to unnecessary wear or false positive results in detection.

Using a pressure that is too low might not effective in revealing minor leaks, while a pressure that is too high could cause stress on the components that are not intended to sustain such pressures. Thus, the choice of 10 psi ensures a thorough and reliable assessment of containment integrity in UST systems.