At what line pressure must the automatic line leak detector detect the 3 gph leak?

At what line pressure must the automatic line leak detector detect the 3 gph leak?

• A. 5 psi
• B. 15 psi
• C. 20 psi
• D. 10 psi

Answer: (D)

The line leak detector works by pressurizing the line to a specific test pressure and watching how quickly the pressure falls. For a leak rate of 3 gallons per hour, the test is set up so that at the chosen pressure, a 3 gph leak would cause a measurable pressure drop within the test window, allowing the detector to trigger if such a leak is present. Ten psi is the standard pressure used because it provides a balance between sensitivity and safety: it's high enough to make a small leak detectable without over-stressing the system or increasing the chance of false alarms. Pressures that are too low can hide a 3 gph leak, while pressures that are too high can lead to false positives or exceed design limits. So the automatic line leak detector is calibrated to detect a 3 gph leak at ten psi.

The line leak detector works by pressurizing the line to a specific test pressure and watching how quickly the pressure falls. For a leak rate of 3 gallons per hour, the test is set up so that at the chosen pressure, a 3 gph leak would cause a measurable pressure drop within the test window, allowing the detector to trigger if such a leak is present. Ten psi is the standard pressure used because it provides a balance between sensitivity and safety: it's high enough to make a small leak detectable without over-stressing the system or increasing the chance of false alarms. Pressures that are too low can hide a 3 gph leak, while pressures that are too high can lead to false positives or exceed design limits. So the automatic line leak detector is calibrated to detect a 3 gph leak at ten psi.