The answer to 'how does sewer camera inspection work' is that a sewer camera inspection uses a small, waterproof camera on the end of a flexible rod that is inserted into the sewer line to visually inspect the interior of the pipes. This allows plumbers to identify issues like clogs, cracks, root intrusion, and other problems that may be causing sewer backups or slow drainage.
During a sewer camera inspection, the plumber will feed the camera into the sewer line through a cleanout or access point. The camera sends live video footage back to a monitor, allowing the plumber to see exactly what is going on inside the pipes. They can then determine the location and extent of any issues, which helps guide the best repair approach.