An array of moving parts used for drain inspection means it’s necessary to employ a fully qualified plumber to carry out the work. Some of the components that can be used include: Waterproof cameras (50-300mm) High intensity lights Plumbing rods Crawlers Sonar units The typical process has your plumber insert the CCTV camera into the drain or pipe in question, connected to a flexible metal cable. Small motors in the cable allow the camera to be fed into the pipe and be controlled remotely. The camera has intense lights attached to illuminate the inside of the pipe and the plumber is able to see in real-time the condition of your plumbing. Using this, they are able to locate where a leak is coming from or even identify what material is causing your blocked drain.