What should you do if the indicated differential pressure on the test kit falls to the relief valve opening point?

What should you do if the indicated differential pressure on the test kit falls to the relief valve opening point?

• A. Continue the test as planned
• B. Adjust the pressure in the system
• C. Stop the test
• D. Replace the differential pressure relief valve

Answer: (C)

When the indicated differential pressure on the test kit reaches the relief valve opening point, it is crucial to stop the test. This is because a differential pressure reaching this threshold indicates that the system is at a critical state where backflow prevention measures may no longer be effective. Continuing the test under these conditions could lead to potential contamination of the potable water supply, as the relief valve is designed to open and prevent backpressure from causing reverse flow. Stopping the test ensures that further risk of backflow is mitigated, allowing for an assessment of the issue and ensuring compliance with safety protocols.

When the indicated differential pressure on the test kit reaches the relief valve opening point, it is crucial to stop the test. This is because a differential pressure reaching this threshold indicates that the system is at a critical state where backflow prevention measures may no longer be effective. Continuing the test under these conditions could lead to potential contamination of the potable water supply, as the relief valve is designed to open and prevent backpressure from causing reverse flow. Stopping the test ensures that further risk of backflow is mitigated, allowing for an assessment of the issue and ensuring compliance with safety protocols.