Which is an essential step before confirming system readiness?

The essential step before confirming system readiness is running the final leak test. This step is critical as it ensures that all components of the system are properly sealed and functioning as intended. A leak test verifies that there are no leaks in the system where water or chemicals could escape, which could lead to system inefficiencies, contamination, or even damage. Confirming the system is leak-free is crucial before proceeding to other steps in system readiness, such as calibration and efficiency verification, as undetected leaks can compromise the accuracy and effectiveness of those processes.

While calibrating the chemical dosing system, resolving installation issues, and verifying backwash efficiency are all important tasks, they come after ensuring the system is leak-free. If there are potential leaks, it could affect the performance of the calibration, lead to unresolved installation problems, or skew the evaluation of backwash efficiency. Therefore, running the final leak test is the foundational step that should be completed first to ensure the system is safe and ready for operation.