What a sewer camera system includes
- A sealed camera head with lighting shows the pipe interior.
- A flexible pushrod advances the head and stores on a reel.
- A control unit powers the camera and displays or records video.
- A distance counter can relate observations to the access point.
- A sonde, or small transmitter in the camera head, can be detected from above ground with a compatible locator. RIDGID documents these components and functions in its SeeSnake manual. [1]
What happens during the inspection
Define the question
Examples include finding the cause of repeat backups, checking cleaning results, identifying pipe material, or locating a visible defect.
Choose the access
A cleanout that aligns with the sewer generally gives a more useful route than forcing a camera through a fixture trap.
Establish visibility
A blocked line may need limited cleaning first. Standing wastewater, grease, and debris can cover the lens or hide the lower pipe wall.
Advance and narrate
The technician watches changes in material, joints, flow, deposits, roots, and shape while tracking distance and direction.
Review the evidence
Important findings are saved with context, then matched to the question that prompted the inspection.
What the camera can record
| Visible category | Examples |
|---|---|
| Obstruction | Roots, grease, debris, lodged material |
| Alignment | Offsets, separated joints, changes in direction |
| Shape and surface | Cracks, deformation, corrosion, missing pipe, deposits |
| Flow behavior | Standing water, active infiltration, discharge entering from a connection |
| Configuration | Pipe material, transitions, branches, and accessible connections |
What you should receive from the inspection
- The access point and direction of travel.
- Approximate distance to each significant observation.
- Video or still images clear enough to understand the finding.
- A distinction between what is visible and what is inferred.
- The cleaning, locating, monitoring, or repair question the observation answers.
A camera is not a pressure test, leak test, or soil investigation. It can show water entering at a visible joint, but it cannot measure leakage through a wall that looks dry. Standing water may suggest a low section, but the technician needs to watch how far the water continues and what happens after flow stops before drawing a grade conclusion.
Color and surface appearance also cannot prove how much strength remains in a corroded pipe. If the decision depends on wall thickness, soil support, or a buried connection outside the camera’s view, the report should say what remains unknown and what other evidence would answer it.