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Regina Opts for Easier, Cheaper way to Access Deep Sewers

There are spots in Regina, Saskatchewan, where sewer pipes are so deep that they can’t be safely accessed with equipment owned by the city. Rather than renting excavators and proper shoring cages, the Department of Water Works developed an affordable way to provide permanent access to those locations. Rather than installing typical prefabricated manhole structures, the department is using polyethylene pipe with a ladder welded inside. The pipe serves the same purpose, providing easy access to the sewer pipes far below ground. It is a lot safer than excavating at those locations and using shoring protection to prevent excavation accidents that…

North Vancouver Pipe Burst Requires Careful Planning

One of the most effective ways of replacing a pipe using trenchless technology is pipe bursting, which replaces a traditional construction trench with launching and receiving pits that pull the new pipe through the existing one, breaking the old pipe into fragments that stay in the ground in-situ.
Sewer, water and gas pipes can all be replaced with pipe bursting, which involves a bursting head, winched cable or shuttle rods, a pulling machine, a retaining device and a hydraulic power pack. Patented by British Gas in the 1960s, pipe bursting is now a proven trenchless technology.

New HDPE Pipe Standard to Result in Stronger, Watertight Product

New high-density polyethylene(HDPE) pipes installed by municipalities across North America are higher-performing than existing materials and water-tight, saving cities money in the long run, thanks to a new standard put out in the fall by the American Water Works Association (AWWA).The C906-15 update, published on September 1, includes high-performance polyethylene resin, known as PE4710, which will improve the durability and reliability of HDPE pressure pipe over existing materials used in municipal water and wastewater systems…

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