How Do Sewer Video Inspections Work?
Before we used video cameras to locate leaks, plumbers would often have to tear up backyards. We also may have use colored dyes to try to discover which fixture (sink, toilet, or shower) is connected to the leaking pipe. But, these were slow and imprecise methods.
Sewer video inspections are simpler and more accurate. A sewer video line is just a small camera mounted onto the end of a long line. The line is flexible but also self-correcting and rigid enough to be passed down the pipe.
A plumber can turn the line around corners in the pipes and extend the line as far as it needs to go. Of course, the video line has a light so you can see the condition of the pipes. It also auto-focuses.
When the plumber finds a clog, they leave the video line in place for a moment. They then use a locator device on the outside of the pipe that will indicate exactly where the line is. They mark the line, and can then access the pipe at the exact right spot.
You can buy a video line to inspect your own pipes, but the versions sold to homeowners are usually short and have poor video quality. They may help you find clogs close to fixtures but aren’t going to give you a thorough picture of your pipe’s condition or help you find clogs that are further away. They also don’t come with indicator devices.