There are many variations of sewer cameras, from 20mm to 50mm cameras that are typically used in CIPP lateral lining, to crawler sewer cameras that are used in the mains 150mm and above. Depending on the type of lining you’re doing, you may need one or the other, or both.
The first cameras used were black and white and offered a very basic look at what was going on inside the sewer. A basic counter was the only feature, and since the inception of sewer cameras, this has remained a valuable addition. Early iterations had very basic optics, making it difficult to determine issues through the various shades of grey. Even though they were equipped with conventional lighting to illuminate the pipe, bulbs were subject to burning out regularly.
When sewer cameras came out, many television inspection companies came to serve the industry, working to identify problems that occurred in the sewers. The cameras were expensive and required a basic understanding of what was on screen. Over time camera pricing improved and more and more plumbing contractors bought their own equipment. As the market evolved, the optics were improved, the colour was added and the lighting was replaced with led lights.
Since we’re talking about lateral lining contractors, the basic 25mm to 50mm push camera is pretty much the industry standard for laterals – the camera is a very versatile tool and a tremendous aid in diagnosing problems. Pushing a camera down a drain can quickly uncover problems because you can see what the problem is, share it with the customer, and help them decide the best course of action to take. It’s not only diagnostic but invaluable in helping the client decide what to do, whether that be to continue cleaning until collapse, dig and replace or reline the pipe.
The 50mm camera can help you decide as well: if you can’t get the camera to negotiate the length of the pipe, you probably can’t line it until you can get the camera through it. The liner isn’t going to push through the obstruction if the camera can’t get through.
Finally, which camera should you buy? Parts and service are important and should be taken into account as investment costs, alongside the durability and suitability of the camera. You will need to factor in all of these options before you buy. Some features that might prioritise could include line counters, self-levelling (so the picture you receive is in the same orientation as the pipe), video capture, voice recording capabilities, sonde and ease of operation.
If you need any help in deciding please contact us and we’ll be happy to assist.