What hazard poses a risk to TV cameras during sewer inspections?

During sewer inspections using TV cameras, offset joints present a significant hazard. Offset joints occur when two sections of pipe are misaligned at the connection point. This misalignment can create a tight or obstructed passage that puts physical stress on the camera as it navigates through the sewer line. If the camera encounters an offset joint, it may become stuck, leading to potential damage to the camera or the need for time-consuming recovery efforts.

Navigating around or through offset joints can also interfere with the ability to obtain clear imagery, complicating the inspection process as operators may not be able to properly assess the condition of the sewer line. Therefore, understanding and identifying offset joints are vital for avoiding risks to the equipment and ensuring efficient sewer inspections.