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Full Length Lining

Full Length Lining

Our main drain lining services includes Structural liners and Localised Structural Repairs.

Structural Lining

Drain lining is a modern technique that can be used to make a wide range of drain repairs, providing a ‘replacement pipe’ without the disruption of excavating the original pipework. This method also has the benefit of time and cost efficiencies.

The liner is manufactured from a special dense impermeable felt and is tailored to fit exactly the internal dimension of the damaged pipe. The thickness of the lining material can be varied according to design specifications required. In all cases it will be superior in quality and strength to the pipe which it lines. The new pipe is moulded into the damaged pipe by an ingenious method called ‘inversion’ using water or air pressure, fitting it tightly against the wall of the existing pipe. When the inversion is complete the new pipe (which is originally flexible) is now rigid. This results in a strong, tough pipe tightly fitted within the existing pipe. The capacity of the drain is only reduced by 5% However, the mechanical efficiency of the drain will be greatly improved as a result.

Once the resin has cured the packer is withdrawn. The resin has now hardened leaving a smooth, strong new lining over the whole interior of the pipe. The whole process can be completed in just a few hours and provides a low-cost solution for drain repairs without the disruption of excavating and replacing the drains.

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