Drain Camera Inspection: What We Can See (and Find) Inside Your Pipes

A plumber in blue overalls kneels on a bathroom floor, smiling as he inspects a plumbing camera monitor.

Article summary

Recurring drain blockages? Discover how professional drain camera inspections pinpoint hidden problems, eliminate guesswork, and save South African homeowners time, money, and unnecessary pipe damage.

Suzette Meyer
Written by
Suzette Meyer
4
min read

There’s nothing quite as frustrating as a recurring drain blockage. You might pour in a chemical cleaner, try a plunger, or even attempt to snake it yourself, only for the problem to resurface days or weeks later. This is where professional drain camera inspection comes into its own. It’s a bit like a doctor using an endoscope to see what's really going on inside your body – it takes the guesswork out of diagnosing persistent pipe issues.

As plumbers across South Africa will tell you, a drain camera isn't just a fancy gadget; it's an essential diagnostic tool. It allows us to pinpoint the exact cause and location of a blockage or damage without digging up your entire garden or tearing open walls. This saves you time, money, and a whole lot of hassle in the long run.

What Exactly is a Drain Camera Inspection?

Imagine a small, high-resolution camera attached to a flexible rod, connected to a monitor. This camera is carefully inserted into your drain or sewer line, navigating through the pipes while transmitting a live video feed back to the plumber. It's robust enough to handle the often-gritty environment of a drain and can even illuminate dark sections to give a clear view.

This visual access allows plumbers to identify issues with incredible precision. No more relying on educated guesses or trial-and-error. Instead, we get a clear picture of the internal condition of your pipes, from the immediate problem area to sections further down the line that might be developing issues.

The Hidden World: What a Drain Camera Can See

The real value of a drain camera inspection lies in its ability to reveal problems that would otherwise remain hidden from view. Our expert plumbers have seen it all through these lenses. Here’s a detailed look at what these cameras typically uncover:

1. Foreign Objects and Debris

This is often the most straightforward find. From children's toys accidentally flushed down the toilet to excessive cooking grease and food scraps accumulating over time, foreign objects are a common culprit for blockages.

  • Real-world scenario: "Just last month, one of our technicians was called out to a house in Durban North with a perpetually slow kitchen sink drain. The homeowner had tried everything. Once the camera went in, it quickly became clear the issue wasn't a simple build-up; there was a small, plastic bottle cap wedged perfectly in a bend in the pipe, acting like a dam for grease and food particles. Without the camera, we might have spent hours trying to snake it out blindly or resorted to more invasive methods."

2. Tree Root Intrusion

Tree roots are incredibly persistent. They seek out moisture and can find their way into the tiniest cracks or loose joints in your sewer pipes, especially older clay or concrete pipes. Once inside, they grow and multiply, eventually forming dense masses that block the flow of wastewater.

  • Real-world scenario: "We often get calls from homeowners in older Johannesburg suburbs where established trees line the streets. A common camera discovery there is extensive root systems. You’ll see them as fine, hair-like tendrils at first, then thicker roots, and sometimes a complete root ball that has completely filled the pipe. The camera clearly shows which specific joint or crack the roots have penetrated, guiding us precisely on where to perform repairs."

3. Pipe Cracks, Fractures, and Corrosion

Pipes don’t last forever. Over time, due to ground movement, age, or chemical corrosion, pipes can develop cracks, fractures, or even holes. These allow water to leak out (or dirt to leak in) and can also create snag points for debris.

  • Real-world scenario: "A homeowner in Pretoria West was experiencing damp patches in their garden, but couldn't pinpoint the source. Our camera inspection of the main sewer line revealed a significant crack running almost a metre long in an older cast-iron pipe. The edges were corroded, and you could clearly see water seeping out. This kind of damage would be impossible to diagnose without visual confirmation."

4. Sagging or Bellied Pipes

A "belly" in a pipe occurs when a section of the pipe sags, creating a low point where water and solids can collect instead of flowing freely. This leads to recurring blockages and poor drainage. This is often caused by unstable ground conditions or improper installation.

  • Real-world scenario: "On a job in Constantia, Cape Town, a family was constantly dealing with their main toilet backing up. The camera showed a distinct dip in the drain line under their driveway. Wastewater and toilet paper were pooling in this ‘belly,’ causing the blockages. Knowing the exact location and severity allowed the plumber to recommend targeted excavation and pipe levelling rather than multiple futile attempts at snaking."

5. Misaligned or Collapsed Pipes

Pipe joints can become misaligned over time due to ground shifting, poor installation, or external pressure. This creates an offset that obstructs flow. In more severe cases, sections of pipe can completely collapse, leading to a total blockage.

  • Real-world scenario: "We once had a desperate call from a guest house owner in the Drakensberg whose entire plumbing system had come to a standstill. The camera revealed a section of their main sewer line had completely collapsed, likely due to a heavy vehicle driving over the unreinforced ground above it. The camera footage was critical in showing the extent of the collapse and planning the necessary replacement."

6. Grease Buildup and Sludge

Especially prevalent in kitchen drains, grease and sludge from detergents, soaps, and food particles can accumulate on the inner walls of pipes over time, narrowing the pipe's diameter and eventually causing blockages. This can be exacerbated by hot water washing fats down the drain, which then solidify as they cool.

  • Real-world scenario: "In many older apartment buildings in inner-city Durban, we frequently encounter severe grease buildup. The camera footage often looks like the inside of an artery – thick, yellowish, and slimy, drastically reducing the pipe's capacity. We can pinpoint exactly where the buildup is most severe and then recommend the appropriate hydro-jetting or descaling treatment."

The Benefits of a Drain Camera Inspection

Beyond simply identifying the problem, a drain camera inspection offers numerous advantages:

  • Accurate Diagnosis: No more guesswork. You get a precise understanding of the issue.
  • Targeted Solutions: Knowing the exact problem and location allows plumbers to recommend the most effective and often least invasive repair method. This prevents unnecessary digging or demolition.
  • Cost Savings: By avoiding unnecessary work and repeat call-outs for recurring issues, you save money in the long run.
  • Preventative Maintenance: A camera inspection can identify potential problems before they become full-blown emergencies, allowing for proactive repairs.
  • Pre-Purchase Inspections: For those buying a new home, a sewer camera inspection can reveal hidden pipe issues that might otherwise become expensive surprises after moving in.
  • Insurance Claims: Clear video evidence of pipe damage can be invaluable when filing insurance claims.

When Should You Consider a Drain Camera Inspection?

While a camera inspection isn't necessary for every minor clog, it's highly recommended if you experience:

  • Recurring Blockages: If a drain keeps blocking after being cleared.
  • Multiple Clogged Drains: When several drains in your home are slow or blocked.
  • Foul Odours: Persistent sewage smells around your property.
  • Gurgling Sounds: Water making strange noises in your drains or toilet.
  • Sudden Increase in Water Bills: Could indicate an underground leak.
  • Lush, Green Patches in Your Garden: Often a sign of a leaking sewer line.
  • Purchasing an Older Home: To assess the condition of the main sewer line.

In conclusion, a drain camera inspection takes the mystery out of plumbing problems. It provides a clear, undeniable picture of what's happening inside your pipes, empowering you to make informed decisions about repairs and ensuring the long-term health of your home's drainage system.

Frequently Asked Questions

How long does a drain camera inspection typically take?

The duration of a drain camera inspection can vary depending on the length and complexity of the drain system being inspected, and the nature of any problems found. A typical residential inspection for a main sewer line might take anywhere from 30 minutes to 2 hours. If multiple branch lines need to be inspected or significant issues are discovered that require detailed mapping, it could take longer.

Can a drain camera get stuck in my pipes?

Professional drain cameras are designed to be flexible and navigate through standard pipe bends. While it's rare, there's always a slight possibility a camera could encounter a severe obstruction or collapsed pipe that prevents it from moving forward or backward. Reputable plumbers are skilled in carefully manoeuvring the camera and have methods to retrieve it safely if it gets lodged.

Will a drain camera inspection fix my blockage?

No, a drain camera inspection is a diagnostic tool, not a repair tool. Its purpose is to accurately identify the cause and location of the blockage or damage. Once the inspection is complete, the plumber will then be able to recommend the most effective solution, such as hydro-jetting, snaking, or pipe repair/replacement, based on what the camera revealed.

Is drain camera inspection messy or invasive?

Typically, a drain camera inspection is not messy. The camera is inserted through an existing access point, such as a cleanout, toilet drain, or vent pipe. This means there's usually no need for excavation or breaking through walls, making it a relatively non-invasive process compared to blindly digging for a problem. Plumbers will take precautions to keep the work area clean.

Suzette Meyer
Written by
Suzette Meyer
Lead content strategist

Suzette Meyer is the lead author and content creator for Kandua.com, South Africa’s #1 marketplace for home services. Suzette has made it her mission to help homeowners with advice on all aspects of home repair, maintenance and improvement, including how to choose the right Pro and how to make smart upgrades that improve your resale value or save costs.

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