As the waste from each flat flows down through the shared vertical Soil Stack, grease, soap and limescale can build up on the inside surfaces of the pipes over time. In some cases the build up can reduce the diameter of the pipes to such an extent that a high pressure jet clean may be required to clear the blockage. In other cases the pipes may need to be renovated using drain lining.
Grease and Scale in the Shared Soil Stack
Although often not a problem that occurs immediately, the vertical soil stacks of shared buildings are subject to the same forms of blockage as horizontal drains, with the passage of time layers of grease, soapy residue and limescale building up on the inner surfaces of pipes. A CCTV survey can measure any reduction in the cross section of a stack and advise whether a jetting cleanse would be sufficient to clear a blockage or whether the drain would be better repaired by means of relining.
Tracing Which Flat Connects Where
Where older blocks of flats have been built, the connections between individual properties’ waste pipes and the main vertical stack may not have been accurately mapped.
Joint Displacement in Long Horizontal Runs
Waste pipes from upper floor flats run horizontally for long distances under suspended floors. Over time these pipes can sag slightly creating dips in the pipe where debris can collect. A CCTV survey will highlight any displacement or settlement of a pipe and show exactly where any damage is. For more on this, take a look at wilkinson-env.co.uk/drainage-services-cctv-surveys-midlands/cctv-drain-surveys/wolverhampton.
Root Ingress at Ground-Level Exit Points
For properties that have a shared garden with trees and shrubs roots can occasionally enter the drain through joints in ground level exit points. CCTV Drain Surveying can identify root mass before it causes a blockage. CCTV Drain Survey Wolverhampton is worth getting right.
Establishing Responsibility at the Boundary
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It helps avoid a lot of argument at a later date.
