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EDS have extensive experience in all aspects of commercial drain repair and domestic drain repair and undertake all works in accordance with the Civil Engineering Specification for the Water Industry. Reinstatement can be undertaken in any surface by experienced skilled craftsmen. Where appropriate, NO DIG solutions (patch lining, lining full length) can be utilised, thereby minimising disruption, and almost always providing a more economical solution.
Where drain repairs are identified following a drain CCTV survey, an EDS professional will provide a written quotation, detailing the problem, where liability for the repair rests (not always straightforward), the severity, likely cause (essential for insurance purposes) and the optimum solution. We are always happy to explain quotations during a follow up site visit if required.
In order to succesfully carry out a drain repair is is essential to consider the operational issues, including health and safety risks to operatives, client and the public, structural risks to adjacent buildings or services, and environmental risks to receiving watercourses. It is also vital to consider the long term stability of the drain on which any repairs are undertaken and any other drains in the vicinity.
There is extensive guidance available regarding trench excavation, width, pipe bedding, loading conditions, reinstatement protocol, surfacing and much more. To the lay person, much of this seems an over complication. However, experience of industry professionals over many years, has established specifications which, when adhered to, will guarantee the longevity of any repair. Equally, if ignored, a repair may fail within a relatively short time. We regularly find defects on recently laid pipework, where the groundworker has chosen to ignore (or may have been ignorant of) industry specifications.
There are circumstances where the defect and local conditions render drain relining as the optimum solution. Where the pipework is not deformed or significantly displaced, and where depth or location would make an excavation expensive or disruptive, a NO DIG solution can often be preferable. EDS will offer a lining solution where appropriate and will advise on both relative costs and the pros and cons of lining as opposed to an excavation for your particular situation.
Any drainage system consists of pipework and ancillaries. Ancillaries include, for example, gullies or channel drains to collect surface water, chambers to allow access for maintenance, changes of direction, or the connection of several branches. Ancillaries also include pumping stations, surface water separators, soakaways, septic tanks, treatment plants and much more.
Drainage problems, such as flooding or regular blockages, can often be due to defects at ancillaries such as gullys or chambers, rather than within the pipework. It is therefore essential that all components of a drainage system are assessed when investigating drainage problems. A CCTV survey is only concerned with the condition of the pipework. We always produce ancillary assessment records for every chamber or gully etc when investigating problems and considering solutions. We have found this to be vital to avoid unnecessary expense undertaking drain repairs on defects not actually causing a problem.
In addition to pipework replacement and drain relining, EDS can offer a number of solutions for repairing defective chambers, including replacement of a damaged covers, epoxy sealing of cracks, remedial works to benching, or indeed rebuilding the entire chamber. In some cases, it may be prefereable to abandon the drain and install new pipework on a different horizontal alignment (i.e. a drain or sewer diversion).