Sewer Camera Inspection Reference

Why this matters

A camera turns "your sewer might have a problem" into a documented diagnosis the customer can see for themselves. It also reveals problems no other tool can: root intrusion location, pipe material transitions, bellies, broken sections, foreign objects. The plumber who runs camera competently sells the right repair and avoids dig-and-pray scenarios. This is the field card.

When to run camera

• Recurring backups (snake works for a few months, then problem returns)
• Slow drains across the whole house (suggests main line, not branch)
• Pre-purchase home inspection (buyer wants confirmation main is sound)
• After a snake job that hit hard resistance (verify what was cleared)
• Before any sewer work to confirm scope
• After a major event (root invasion, ground movement, age concerns)
• Mature trees on the property + clay-pipe-era home (root risk)

Don't run camera as the first response to a single backup - snake first; camera if it recurs.

Equipment

Push-rod camera: flexible rod with camera head; pushed through cleanout. 100 - 200 ft typical residential reach. Self-leveling head (image stays upright as camera rotates) is worth the upgrade.

Crawler camera (motorized): for larger pipes 6"+; commercial. Drives itself.

Locator: sonde in the camera head emits signal; surface receiver locates the camera's position above ground. Critical for marking where excavation should happen.

Monitor + recorder: video recording for customer; pause + screenshot.

Common brands: RIDGID SeeSnake, General Pipe Cleaners Gen-Eye, Spartan Sewer Cam.

Access points

• Outside cleanout (preferred - usually 4" near foundation)
• Inside cleanout (basement floor or laundry room)
• Pulled toilet (last resort for camera; need clean approach)
• Roof vent (rarely - long distance, hard to manage rod)

Through a fixture trap won't reach the main; you need real access.

Pre-run prep

Before pushing camera:

• Snake the line first if heavy debris is present; camera in muddy water shows nothing
• Run a low flow of water at a sink to keep the lens rinsed during the run
• Pre-feed a few feet of rod to verify camera works above ground (battery, image, light)
• Locate the access cleanout outside if going from inside, to estimate run length

Running the camera

Push the rod gradually - don't force. Watch for:

• Pipe material transitions (different texture, different reflectivity)
• Joints (recurring patterns)
• Fittings (wyes, elbows where branches join)
• Standing water (suggests belly OR partial blockage downstream)
• Roots intruding through joints
• Cracks, fractures, offset joints
• Foreign objects (toys, wipes, "flushable" wipes)
• Pipe color and condition

Talk to the customer as you run if they're present - they'll remember what they saw.

Sonde locating

When you find something to repair, use the sonde to mark its location above ground:

• Stop camera at the issue
• Activate sonde
• Sweep receiver over the ground above where camera is
• Mark with paint or stake
• Verify by moving camera 5 ft + re-locating

The depth reading is usually approximate - count rod feet as the more reliable distance measurement and combine with the location.

Reading what you see

Roots through joint: the most common older-home finding. Clay-tile or cast-iron joints; roots find seams; intrude during dry weather seeking moisture. Solutions range from cabling (mechanical removal, returns within months) to root-kill chemical (Roebic) to spot repair to liner.

Belly (low spot holding water): settled pipe section. Water stands; debris accumulates. Snake clears symptomatically but the belly remains. Repair = re-grade the pipe (excavation).

Broken / offset pipe: pipe sections shifted or broken. Excavation OR spot repair (cured-in-place liner over the break).

Crushed pipe: heavy machinery overhead or settling. Full section replacement.

Bellied + roots together: common in clay lines 50+ yr old; full re-line OR replacement.

Orangeburg pipe: tar-impregnated wood fiber (used 1940s - 1970s). Distinctive layered appearance; deteriorates with age + collapses. Replacement, not repair.

Cast iron with channeling: bottom of pipe rotted away from waste contact; top intact. Liner can save these.

Foreign object: child's toy, dropped tool, root mass that snake couldn't clear. Retrieval tools or hydrojet.

Customer documentation

Always record the run and provide to the customer:

• Date + time + tech name
• Access point used
• Distance to each notable finding
• Sonde-located surface positions marked on a sketch
• Recommended repair (with reasoning)
• Recording of the actual video footage

A customer with the recording can get second opinions, file insurance claims, and trust your diagnosis. Hidden problems become visible problems.

Repair options revealed by camera

Mechanical snake (cable): clears blockage; doesn't repair pipe. Roots regrow.

Hydrojetting: high-pressure water; cleans grease + soft buildup; doesn't fix structural.

Spot repair (cured-in-place liner patch): trenchless; fixes single break.

Full liner (CIPP - cured-in-place pipe): re-lines entire run; new structural pipe inside old. Trenchless.

Pipe bursting: pulls new HDPE through old; old pipe shattered outward. Trenchless when access allows.

Open trench replacement: dig + replace. Highest disruption, sometimes only option.

Common camera mistakes

• Running camera through dirty/muddy water - see nothing
• Forcing rod against obstruction - damages camera head
• Skipping sonde locate - find a problem but can't tell customer where
• Not recording video - customer's word against yours later
• Misreading roots vs grease (similar appearance to inexperienced)
• Pushing too far + losing track of distance markers

Camera maintenance

• Rinse rod after every job (sewer water + grease damages PVC)
• Inspect camera head for cracks before each use
• Charge batteries fully between jobs
• Calibrate sonde annually
• Don't kink or coil rod tightly (breaks fiber-optic + wiring inside)

Sewer line replacement quotes

After camera, you can quote accurately:

• Distance affected (rod feet recorded)
• Depth at the repair (sonde reading + visual confirmation)
• Surface conditions over the line (driveway, landscaping, structure)
• Available trenchless options (some require access pits both ends)
• Permit + inspection requirements (local AHJ)

A camera + thoughtful estimate beats a guess every time. Customer + inspector trust your work.

When to refer

References

• ASTM F2599 (sewer pipe condition assessment)
• NASSCO PACP (Pipeline Assessment Certification Program) - coding system for documenting pipe defects
• Manufacturer documentation (RIDGID, General Pipe Cleaners, Spartan)
• IPC + UPC sewer code
• Manuall internal: Drain Vent + Traps Reference, Common Leak Detection