This page outlines the problems and faults which are found during a CCTV Drain Survey using a camera and a small wheeled unit.
Root Ingress
Roots in drainage pipes follow moisture. The major source of this in joints between pipes is the water that leaks out through them. Roots appear as fine hairlike strands on the drain camera images. Sometimes the roots form a dense mat in the drain pipe. These can cause a blockage in the drain and also cause damage to the pipe walls.
Displaced or Open Joints
Settlement of ground can cause pipes to move. As a joint in a drain opens up, water can flow out through the gap. This can cause erosion to the surrounding soil which in turn could cause a sinkhole to form on the surface above.
Grease and Fat Build-Up
The buildup of grease and fat in pipes, such as those in kitchens, can cause a variety of problems. A CCTV drain survey will highlight any build-up of grease and fat within the pipes of your property, showing the degree of narrowing of the pipe’s bore. In time, this can lead to problems with the drainage of a property, such as a slow draining sink or shower. Eventually, the pipe could even block completely.
Pipe Corrosion and Erosion
Corrosion of the inside of older clay or iron pipes can cause them to deteriorate, sometimes in a rough, pitted way that will quickly cause blockages as debris gets stuck. These defects are classed as structural defects and logged in detail using underground drainage defect classification to highlight the severity of the defect.
Pipe Collapse or Deformation
A collapsed pipe section would be recorded on the CCTV drain survey as being ‘flattened’ or ‘crushed’. A pipe collapse is one of the worst results from a CCTV drain survey and can often require a full excavation to repair, rather than being able to simply line the pipe.
Rat Holes and Vermin Damage
Rat Holes and Vermin Damage: A CCTV Drain Survey Nottingham will pick up holes in a drain’s walls, left by burrowing vermin. Typically these holes will be ragged, possibly showing soil behind them.
CCTV Drain Survey Nottingham is covered in more detail at https://www.wilkinson-env.co.uk/drainage-services-cctv-surveys-midlands/cctv-drain-surveys/nottingham/.
This helps to understand the report from your CCTV Drain Survey and then choose the best solution to fix any problems.