It is widely known that a significant proportion of East Anglia relies for its existence on the effective operation of widespread land drainage networks. Without these networks much of the region would not be able to function in the way that it does and the population would be hard pressed to continue their lifestyles in the way they do in the modern world due to the high ground water levels.
Much of the drainage to keep ground water levels in check is achieved using local pumping stations that take water from the land drainage network and pump it into local rivers and drainage channels that remove the water off the land and out to sea so keeping the local area from flooding. These pumping stations are under the control of the Internal Drainage Boards (IDB’s).
However, when undertaking rehabilitation of a pumping station at a site near Kings Lynn, a reverse syphon carrying water from the pump station to the main drainage channels that fed the local estuary, was found to have failed and there were fears that water normally carried by the syphon away from its local pumping station would cause problems.
The failure of the syphon meant that water from the pumping station was not, as would normally be the case, all removed from the network but that it was being returned back into and potentially undermining the pumping station due to leakage in the syphon. This was also causing the river bank near the pumping station to erode. It was causing problems in the pump station as water was recycling, meaning the pump station was working significantly harder than it should, incurring extra cost and potentially could lead to significant flooding problems for the area. Read More
Marlborough College in Wiltshire, UK is a highly respected independent school for day and boarding pupils. The College was established in 1843 by a group of Church of England clergymen. Today the College is a fully co-educational establishment catering for about 930 pupils with the great majority (98%) being boarders. The Duchess of Cambridge is a former pupil.
Of the full boarding schools across the country, Marlborough was recently ranked 4th with an 82% acceptance rate for pupils to the UK’s top 30 universities, a rating bettered only by Westminster School, St Paul’s School and Winchester College.
As with all buildings that have been in use for some considerable time, Marlborough College’s infrastructure is constantly reviewed and repaired or upgraded as necessary.
Recently part of this ongoing process there was a need for the renovation of a significant part of the College’s North Block including the building’s rainwater drainage system. The system comprises very old and ornate cast iron rain water downpipes that in places are hidden within the fabric of the wall and which take rainwater from the roof to ground level drains. In places these downpipes were leaking causing damp problems within the building. Given their design, location and accessibility they would have been very difficult to replace in keeping with the original building construction so an alternative to full replacement was sought. Read More
The North of England has long been famous for not just its wonderful landscapes, world renowned cities and the character of its people, it is also globally recognised as a major centre in the growth of the industrial economies we see today. Whilst like many parts of the UK the region has had its ups and downs alongside the vagaries of the economy it still boasts some of the UK’s largest industrial facilities.
Not least of these is a major soft drinks manufacturing plant which was recently the site of a challenging pipeline rehabilitation project undertaken by DALROD, a family run drainage industry service provider established in Peterborough in 1985. The project was completed using the BRAWOLINER® HT CIPP liner system, supplied by the UK Brawoliner distributor C.J. Kelly Associates of Peterborough. The project had apparently been looked at by other rehabilitation contractors but dismissed as not possible using currently available techniques.
Sewer lining specialist DALROD Cambridgeshire was recently involved in a technically challenging project to keep water flowing to a major cement works in Essex, UK. The site is part of an industrial development in the mined out area of what is still elsewhere a working quarry site, investigations showed that the pipes which carried away fresh water between to two lakes was in need of rehabilitation. However, the fact that the site was industrialised with other operations as well as the cement mixing works, meant that operating conditions for any rehabilitation works would be far from easy.
The client expressly demanded that the rehabilitation be completed in a set timeframe with all traffic management being undertaken by the contractor and most of all that not only during the rehabilitation works but subsequently there should be no pollution created by the products used to complete the works. Read More
The problem was that some 5 years ago pipeline survey works highlighted that ground movement has caused deterioration and cracking in sewers the vicinity of the cathedral, with the situation being carefully monitored by DALROD since. A more recent survey indicated that the sewers were now in need of relining, which is normally a straightforward procedure for the DALROD team. However, in this instance, one particular 225 mm (9 in) diameter sewer system, which was approximately 2.8 to 3.0 metres deep, had particularly difficult access problems. The access was tricky for various reasons including that the pipeline runs below a terrace of pre-war-built houses with no rodable access points from most of the lateral connections as well as poor access to most of the gardens of each individual property which made it difficult to reopen the lateral connections subsequent to the main line lining work. In addition to the access difficulties, most of the properties comprised 3-storey buildings that had live systems which could not be shut down adding to the general operational difficulties. All of this meant that Dal Rod had to reline the sewers whilst the system was live and over-pump where flows required it to make sure that no flooding occurred in the basements of any of the 3-storey buildings during the works. This was clearly a case for a trenchless lining or 'no-dig' solution. Having examined the options it was decided that Brawoliner was best suited to the work, a system which the DALROD team had previously utilised on similar jobs. Read More
The smallest BRAWOLINER® to date. For in-house rehabilitation
In the past, defective flush-mounted small diameter pipes had to be repaired in open cut replacement. BRAWOLINER® is proud to announce a special liner for the rehabilitation of DN 50 sanitary pipes; for example from the shower to the wash basin, drain pipelines in the kitchen or industrial areas can now be rehabilitated easily with BRAWOLINER® DN 50. The seamless liner has the same product characteristics as the proven BRAWOLINER. It can be installed with a minimum pressure and up to 90 ° bends. As usual, the installation takes place with the inversion drum and an additional reduction nozzle. Read More
AES Kilroot Power Station (KPS), near Carrickfergus, some 12 miles northeast of Belfast, is an oil and coal burning power station that produces around one third of Northern Ireland’s electricity. Being such an important power generator for the area, however, the current facility must be kept at its best efficiency and operational performance at all times.
As part of the ongoing maintenance work to ensure this performance is achieved, a CCTV survey of the existing 420 mm diameter, steel, sea water pipelines which have been in use for over 30 years was undertaken.
The survey showed signs of severe encrustation and corrosion, with, in places, up to 30% of the pipe cross section being obstructed. Corrosion had also removed a length of approximately 7.0 m in the invert of one pipe and there were also numerous small holes throughout the length of the pipes which allowed the ingress of water in the form of jets and seepage. Read More
The rehabilitation of lateral connection pipes and service drains with in-built changes in diameter sometimes presents a major challenge for many existing rehabilitation technologies. Given the occurrence of such pipe structures, there has for some time been a need for a liner system that can accommodate such diameter fluctuations during the installation process without the need to excavate to access the diameter change location or design a liner with the diameter change in the ‘right position’ before installation. This is particularly the case where, in one single pipe length, large increases in diameter exist, for example from DN 100 to DN 150.
The new BRAWOLINER® 3D liner system was developed especially Read More
Since 2004 Bell Services Ltd, the Dyno Rod franchise holder for the Channel Island of Jersey, has been using the German-manufactured Brawoliner® system, from KOB (Karl Otto Braun KG) of Wolfstein, for the lining of deteriorated pitch fibre and vitrified clayware foul and surface water pipes across the island.
Some 2,000 m of Brawoliner® has been installed over the last 3 years in either 100 mm (4”) diameter, 150 mm (6”) diameter, with some 200 mm (9”) diameter installations. Clients have included The States of Jersey Public Services, Education Sport & Culture (local schools), Health & Social Services (General Hospital) and Housing Departments as well as Public Houses and Residential Homes and numerous properties across the island.
The work has been undertaken in close association with CJ Kelly Associated Ltd, an independent specialist sewer renovation consultant and KOB’s technical representative the UK and Éire. Read More
Cambridgeshire-based drainage contractor Dal-Rod Cambridgeshire recently undertook its first ever lining operation with the BRAWOLINER® system on a project in Epping Forrest. Working for managing contractor AMEC, the project was required to renovate drains at the Epping Forest college campus. The local authority required rehabilitation of the sewer, which runs under a main highway between the college and a public walk way, to be completed using Brawoliner® as a preferred method of repair. The majority of the pipes comprised 225 mm or 150 mm diameter pipes which were suffering from numerous cracks, joint displacements and fibrous root intrusions, as well as egress & ingress of sewer and ground water flows. Read More
The 5 Star Dromoland Castle Hotel, located about 6 miles north of the town of Shannon in the west of Ireland, is renowned as a magnificent example of Renaissance architecture having been built in the 16th century and is recognised as one of Irelands premier castle resort hotels. Out of doors, the facility offers a championship golf course, fishing, horse riding, clay shooting, and many more active pursuits and the castle is often used as a base to explore the surrounding area from Bunratty to the Burrren or the Cliffs of Moher, all of which are within easy driving distance. Read More
MC Construction Chemicals, along with its UK representative CJ Kelly Associates Ltd, is pleased to announce the launch of a new all-encompassing Manhole Renovation product range, ‘ombran’.
The most recent statistics, reported by some 27 countries across Europe, have shown that there are some 60 million manholes currently in operation. A further report showed that, of these manholes, around 12% (or 7.2 million) are in a state of deterioration to the point where renewal is required. Furthermore, cost estimates also showed that the average cost of fully rehabilitating one manhole is about €2,250. This equates to a total of around €16.2 billion for the 7.2 million manholes needing repair. Read More
For almost 20 years S&D Services, of Chard Junction, Somerset, has been clearing blockages from, removing root intrusions in, replacing and repairing drainage systems across Somerset and Dorset. Having started as a franchise for to one of the UK’s well known, country-wide operators, S&D now operates independently from its idylic rural setting, undertaking projects mainly for industrial and commercial clients with occasional smaller domestic works, primarily on insurance claim operations. Read More
CJ Kelly Associates Ltd is pleased to announce the completion of a new dealership agreement with Switzerland-based Terra AG whereby the company will exclusively represent the interests of Terra for its complete product range across the whole of the UK.
In a departure from its specialisation in renovation systems, CJ Kelly will distribute Terra AG’s range of HDD rigs, Mini HDD rigs, Hydraulic Pipebursting systems and Impact Hammers for new pipe installation, pipe ramming and pneumatic bursting operations and cable-based pipe pulling systems for pipe replacement works. Read More
Available online or direct from Sewer Centre, the PatchBox™ kit comprises an application system for 100 mm and 150 mm diameter pipes including (to order): a Glass Fibre mat cut to the customers specification and size; the appropriate resin requirements in two separate storage bottles; a 100/150mm by 1.5 m Sava lateral inflatable Packer; a Locking inflation coupling; a Heavy duty eye bolt and stainless steel extension with brass adapter to connect to drain rods; a Heavy duty hand pump; an Inflation Controller complete with safety valve and fail safe regulator; a 30 m inflation hose with locking self sealing couplings; and a Check Gauge to monitor pressure in the Packer whilst the repair is curing. Read More
In mid-February 2006, Thames Water plc, one of the United Kingdom’s main water companies, and Karl Otto Braun (KOB), along with its U.K. renovation technology consultant CJ Kelly Associates Ltd., undertook a strictly controlled test to establish Brawoliner’s capacity to handle installation conditions including significant infiltration.
The test, while being promoted by Thames Water, has been designed, in conjunction with most U.K. water companies, to establish the relative performance of different lining systems in resisting: Read More