While pulling the CCTC through the sewer line, what must the operator always do?

The operator must always keep an eye on the monitor while pulling the Closed Circuit Television Camera (CCTV) through the sewer line to ensure that they can observe the camera's feed in real-time. This continuous monitoring allows the operator to detect any issues such as obstructions, blockages, or structural problems in the sewer line that may require immediate attention. If the operator fails to watch the monitor, they could miss critical information that could lead to misdiagnosis of the sewer line’s condition or even damage to the camera or the sewer infrastructure itself.

Maintaining focus on the monitor also enables effective decision-making regarding the necessary actions, such as whether to continue pushing the camera, backtrack, or address an obstruction. This practice reflects a crucial aspect of the CCTV inspection process, which is to gather accurate data for effective sewer maintenance and management.