Video Pipe Inspection
Underground Sewer, Storm & Pipe In-Line Crawler
Video Pipe Inspection Case Study
GPRS will get requests for video pipe inspection to assess different pipes and is instrumental in inspecting sewer service laterals. The one screen picture in picture will give you all the information you need for mainline and lateral viewing. If you would like to learn more about the value of video pipe inspection please take a look at a recent video case study.
Video Case Study Notes:
Results - We were pushing smoke into the storm lines and the smoke was coming out of a known sanitary manhole nearby. We then placed the smoke machine on a sanitary manhole, and it came out of the storm manholes & catch basins in the area. To figure out what was going on, we used our robotic crawler and inspected the storm lines while blowing smoke into a sanitary manhole. We ended up finding that they had a sanitary channel built into one of the storm lines at a higher level.
The picture below is the camera looking up at a manhole lid while inside the storm system. The brick on the right had a sanitary channel built into the top of the brick structure. When we blew smoke into the sanitary manhole, we could see it coming from the top and towards our camera in the storm system. This manhole was buried under asphalt so we could not open it to get pictures of the setup from the top.
This helped the customer in 2 ways. We found a buried manhole that the customer did not know existed. This could have become a big problem down the road. If the sanitary line backed up at any point it would flow over the channel wall and into the storm system. This would eventually pollute the rivers nearby with sanitary waste.
What is Video Pipe Inspection?
Video Pipe Inspection is a method of using video to visually inspect a utility line for cracks, infractions, blockages, and other imperfections in the line. The process involves navigating a video camera through a utility line, either manually or via a remote control, which provides a video feed of the pipe’s interior to an on site monitor for viewing.
How Does Video Pipe Inspection Work?
The first step to performing a CCTV pipe inspection is to find the access point where the camera can be lowered into the utility line. Once the camera is lowered into the line, it can give a very clear picture of the condition of the line and what the inside of the utility looks like.
Why Do We Use Video Pipe Inspection Work?
There are typically four main reasons why someone uses VPI. The main uses for VPI include non intrusive inspection of pipes and conduits, discovering unknown laterals and tie-ins, identifying problematic areas caused by deterioration or poor construction and to locate other unknown blockages. The value of using it can help customers deal with damaged sewer lines and the repairs can focus on those damaged sections only, which in the long run will reduce the cost and time it takes to fix the pipe.
CCTV Company Contractor
In-Line CCTV Crawler Lowered into Sewer
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Geode Map of Storm and Sanitary Sewer at a Mall in Las Vegas, NV
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Buffalo Manor West & East Map
A customer recently had a pothole surface in their parking lot. The customer was not sure what the root cause of the pothole was and decided to call our CCTV inspection services department to use the cctv robotic crawler system in the surrounding storm pipes.
A valued customer was having flow issues within their waste pipes and was not sure exactly where the issue was occurring. The customer hired our CCTV camera inspection services department to use the robotic crawler camera system to determine where the issue was.
GPRS was contacted by a local contractor in Southern California that had a problem that needed solving. They had a project at the Buckley School in Sherman Oaks, and they needed to determine where the main storm sewer line was running along with the location of any taps in the work area(s). This might seem like a pretty simple project, however, the storm sewer pipe is a 51 inch RCP (Reinforced Concrete Pipe) and it is roughly 20-25 feet deep.
Many cities and counties around the US have started requiring pre and post inspections of storm and sanitary sewer lines if any work is taking place near those utilities. GPRS was called out to a residential build, where a swimming pool was being constructed near the city sanitary sewer line. The purpose for the pre and post inspections is to determine if there was any change in the pipe condition before and after the construction takes place.
NASSCO is the National Association of Sewer Service Companies. NASSCO sets industry standards for assessing, maintaining, and rehabilitating underground infrastructure. Two training programs are used to certify those who are performing pipe inspection work. The Pipeline Assessment Certification Program is the North American Standard for pipeline defect identification and assessment. NASSCO’s Inspector Training and Certification Program is the standard national training and certification program which provides field construction professionals with comprehensive learning and tools to understand and inspect trenchless pipeline renewal technology.