What Can a Sewer Camera Inspection Find?

Written by Steven Shipler, Texas Licensed Master Plumber, Responsible Master Plumber (RMP), MBA, and host of Plumbing Ed on YouTube.

A sewer camera inspection can find underground problems that are impossible to see from inside the home. The toilets may flush, the sinks may drain, and the yard may look normal — but the sewer line may still have roots, standing water, offsets, breaks, corrosion, bellies, or under-slab failure.

1. Tree Roots Inside the Sewer Line

Tree roots are one of the most common sewer camera findings. Roots enter through cracks, separated joints, old clay pipe connections, or damaged fittings. Once inside the pipe, they catch paper, grease, wipes, and debris.

In my experience, buyers are often shocked because the yard looks beautiful. Mature trees can make the property look valuable, but underground roots can be slowly taking over the sewer line.

2. Sewer Bellies and Standing Water

A sewer belly is a low area in the pipe that holds water. Instead of draining completely, wastewater sits in the line. Over time, solids collect in that low spot and cause recurring backups.

Standing water is one of the biggest red flags on a sewer inspection because it may point to poor slope, soil movement, settlement, or an improperly installed sewer line.

3. Offset Joints and Pipe Separations

An offset occurs when two pipe sections no longer line up correctly. A separation occurs when the pipe has pulled apart. These defects may be caused by soil movement, foundation movement, poor installation, old pipe material, or previous repairs.

4. Broken, Cracked, or Collapsed Pipe

A camera inspection can reveal cracks, missing pipe sections, crushed pipe, or partial collapse. These findings are serious because drain cleaning alone will not repair a structural pipe failure.

5. Cast Iron Pipe Failure

Older homes may have cast iron sewer lines under the slab. Cast iron can develop scaling, corrosion, bottom-channel rot, rough interior surfaces, and cracks. A camera inspection can show whether the pipe is still serviceable or whether the system is deteriorating.

6. Clay Pipe Problems

Older clay sewer lines may separate at the joints, crack, shift, or allow roots to enter. Clay pipe can sometimes look fine in one section and then show major root intrusion or separation a few feet later.

7. Grease, Sludge, Wipes, and Heavy Buildup

A sewer camera inspection can show buildup inside the pipe. Grease, sludge, wipes, paper, and debris may collect in low spots, rough cast iron, offsets, or poorly sloped areas.

8. Failed Previous Repairs

Sewer cameras often find older repairs that were not properly aligned, poorly sloped, or connected to deteriorated pipe. A home may have had a previous sewer repair, but that does not mean the full sewer system is good.

9. Under-Slab Sewer Problems

A sewer camera inspection may reveal problems under the slab foundation, including standing water, cast iron deterioration, offsets, broken fittings, poor slope, and pipe separation.

Under-slab findings matter because repairs may involve tunneling, concrete access, flooring disruption, rerouting, or partial replacement.

10. The Sewer Line Path and Approximate Problem Location

When paired with locating equipment, a sewer camera inspection can help identify the approximate path, depth, and location of defects. This helps homeowners understand whether the problem is under the house, in the yard, below a driveway, near a tree, or close to the city tap.

Three DFW City Examples

• Plano, TX: Camera inspections often matter in older neighborhoods with mature trees and possible cast iron or aging sewer laterals.
• Richardson, TX: Established homes may have under-slab plumbing, root intrusion, clay pipe, or old repairs.
• Dallas, TX: Older properties may have long sewer runs, cast iron deterioration, bellies, offsets, and prior repairs.

Tools and Equipment Used

• RIDGID SeeSnake sewer camera: Used to visually inspect the inside of the sewer pipe.
• RIDGID SeekTech locator: Used to locate the camera head, sewer path, approximate depth, and defect area.
• Hydro jetter or drain cleaning equipment: Used when debris must be cleared so the camera can see the true pipe condition.

Watch These Sewer Camera Inspection Videos

Helpful Internal Links

• The Ultimate Guide to Sewer Inspections Before Buying a Home
• What Can a Sewer Camera Inspection Find?
• Sewer Inspection Checklist for Home Buyers
• Testimonials
• More Testimonials
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