Start with the counter
Most inspection footage shows a running number on screen. It is the length of push rod fed into the pipe, usually in feet, measured from where the camera entered. Every defect you care about should be described with that number, because it is how a crew finds the same spot from above when planning pits or a spot repair.
Watch the image itself as the counter rises. A healthy pipe looks like a smooth tunnel with evenly spaced joints. Water should flow along the bottom and drain away. When the picture tilts, fills with water, narrows or shows a ring that does not line up, that is where to pause and ask.
Terms you will see or hear
- Lateral
- The private sewer pipe from the house to the public main.
- Cleanout
- A capped access pipe used to clean or inspect the line.
- Offset joint
- Two pipe sections that no longer line up, leaving a lip that catches waste.
- Separated joint
- A gap between pipe sections where soil or roots can enter.
- Root intrusion
- Roots growing into the pipe, usually at joints, from hair-thin to a dense mass.
- Belly or sag
- A low section where water stays standing instead of draining.
- Scale or tuberculation
- Rough mineral and rust buildup inside cast-iron pipe.
- Channeling
- Erosion along the bottom of cast iron, sometimes worn through.
- Tap or wye
- A point where a branch line joins the main lateral.
What common findings usually mean
| Finding | What it looks like | Why it matters |
|---|---|---|
| Fine roots at a joint | Hair-like strands at a ring | Early intrusion; cleaning helps but roots return |
| Root mass | A fibrous plug filling the pipe | Blocks flow; joint is open to soil |
| Longitudinal crack | A line running along the pipe | Structural weakness, common in cast iron |
| Offset | A step where the circle shifts | Catches waste, may challenge a liner |
| Standing water | Camera lens goes under water | Possible belly; check grade |
| Broken or missing pipe | Soil or voids visible | Often needs bursting or excavation |
While you watch, note these
- The counter reading at every pause
- Where the pipe material changes, for example cast iron to clay
- Every branch connection the camera passes
- Whether the camera reached the city main
- Any section where the image went under water
- Spots the plumber calls minor versus serious
Common questions
Why does the picture go dark or blurry in places?
The lens may be under water, fogged or covered in debris. Sections the camera could not see clearly are worth asking about.
Is every root in the line a reason to replace it?
No. A few fine roots at one joint can sometimes be managed with cleaning or a spot repair. Widespread intrusion is what usually prompts lining or bursting.
What if the camera stopped short of the main?
Ask why, and ask what that means for the quote. An unknown section can change the plan once work starts.
General information for Fullerton, not a quote or professional advice. In an emergency, call 911.