Drains take wastewater away from a property, directly into the sewerage system. Outside drains form a complex series of pipes underground.
Pitch Fibre Drains
The installation of pitch fibre drains peaked in popularity during the 1950s – 1970s.
They provided a more cost-effective system than that offered by clay pipes, with no sacrifice on strength and durability. They were built with a mix of wood cellulose and unreactive coal tar, with asbestos regularly added to the mixture for strength.
The major disadvantage of this drain system is that it is susceptible to breakage.
Pitch fibre drains have an average lifespan of around 40 years, meaning that many installations are close to becoming ineffective or damaged beyond repair. With changing lifestyles seeing more oils, grease and fats entering the drain network, pitch fibre drains are now having to withstand more pressure than when they were initially designed and installed.
It is possible to repair pitch fibre drains and it is important that they are closely monitored for damage to prevent them from collapsing. Drains that are not bellied or bent should be repaired and preferably without digging or removal of the pipe.
CCTV Drain Surveys
A drain survey is recommended for anyone who has pitch fibre drains installed.
The latest in CCTV technology allows a full survey of the drain with no mess or disruption. Engineers can get a clear view inside the drainage pipes, allowing them to identify the exact location of any damage, corrosion, blockages or leaks. Recommendations can then be made as to whether repairs or replacement are needed.
More details on CCTV drain surveys and drain lining repairs can be found at www.drainpower.co.uk/drainage-services/cctv-drain-surveys.
Problems with pitch fibre drains should always be dealt with by an experienced and insured professional. They have all the equipment, tools and safety precautions necessary to identify issues and carry out repairs or replacement, in collaboration with the property owner.
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