CCTV drainage, also known as Closed-Circuit Television drainage inspection, is a method used to inspect the condition of underground drainage systems such as sewers and stormwater drains.
What happens during CCTV drainage?
Before conducting the inspection, the drainage system needs to be prepared. This involves cleaning the pipes to ensure that the camera can travel smoothly without encountering obstructions or debris. Often, high-pressure water jets or mechanical cleaning equipment are employed to remove sediment and any other blockages that might block the camera’s movement.
Next, a small, waterproof CCTV camera, usually attached to a flexible cable, is inserted into the drainage system through an access point such as a manhole or inspection chamber. The cable is fed through the pipes, allowing the camera to travel along the length of the drainage network. The camera’s flexibility enables it to navigate through bends and turns in the pipes, providing detailed coverage of the entire system.
Live video footage captured by the CCTV camera is transmitted to a monitor located above ground. Technicians will then monitor the footage in real-time, assessing the condition of the pipes and identifying any damage. For an idea of costs involved visit checkatrade.
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What are the benefits of CCTV drainage surveys?
CCTV drainage inspection offers several significant benefits over traditional methods of drain inspection. Firstly, it provides a non-invasive means of assessing the condition of underground drainage systems.
Secondly, CCTV inspection provides highly detailed and accurate assessments of drainage systems. The live video footage allows trained technicians to identify even minor issues within the pipes immediately.
Another benefit of CCTV inspection is its ability to provide visual documentation. This documentation is invaluable for regulatory compliance, insurance purposes and decision-making regarding maintenance and repair priorities.