What is the primary reason to monitor the pressure in chlorine storage cylinders?

Monitoring the pressure in chlorine storage cylinders is crucial for ensuring an adequate supply of chlorine. The pressure readings provide vital information about the amount of chlorine gas available in the cylinder. As chlorine is drawn from the cylinder for use in water treatment processes, the pressure will begin to drop. Monitoring this pressure allows operators to know when the supply is becoming low, prompting timely actions such as scheduling a cylinder refill or replacement. This prevents interruptions in the disinfection process, ensuring that water remains safe for consumption.

Other options, while important in various contexts, do not address the primary purpose of pressure monitoring in this specific scenario. Checking for leaks involves different methods and practices, often focusing on safety and hazard prevention rather than supply management. Avoiding overfilling is a consideration for cylinder handling but is not the primary reason for monitoring pressure, which is more about keeping track of the available chlorine for treatment. Similarly, maintaining consistent flow is related to the operational aspects of chlorine delivery systems but does not directly stem from pressure monitoring in storage cylinders. The focus on checking supply adequacy stands out as the most critical factor in the context of chlorine storage.