What must be continuously attended during purging operations?

During purging operations, it is crucial to continuously attend to an open discharge point. This is because the purpose of purging is to safely remove unwanted gases from a system, typically to prevent the accumulation of hazardous or combustible gases. An open discharge point ensures that any flammable or toxic gases being evacuated from the system can safely be released into the atmosphere without risk of backflow or pressure buildup.

Having this point monitored allows the operator to control the discharge effectively and respond to any changes in the flow or pressure that may indicate a malfunction or hazard. This attention not only promotes safety but also ensures that the purging process is effective and compliant with safety regulations, thereby minimizing risks associated with gas handling.