Fast and easy installation

Sewer networks of high density polyethylene (HDPE) pipes can quickly be installed utilizing subsurface drilling technologies, removing the need to replace road surfaces and to reinstate surrounding properties. SBS™ networks can be installed under roadways without traffic interruptions, as vehicle flow is not interrupted by construction crews while working, and businesses can carry on with their work without losing their customers who would otherwise be unable to park nearby. Previous installations of SBS™ systems have been completed in half the time and for lower costs, compared to historic gravity sewer systems.

Open Trench Technology (photo courtesy of De Soto County, FL)	Trenchless Technology (photo courtesy of RWC & Associates Inc.)

Installation Issues with Historic Gravity Sewers

Historic sewer systems are typically installed in the centre of road allowances using open trench methodology. This process requires deep excavations with stable side slopes that can result in a dramatic impact on the natural geology and ground surface restoration requirements in construction areas. The impact of large open excavation can have a dramatic effect on system cost for both new and re-servicing projects that require sewage collection systems.

Historic sewers need pipe bedding that is installed with grading control and compaction that beds and surrounds the piping system with imported materials (sand/gravel) to ensure no damage or cracks occur in the stiff pipe material. The process of installing historic sewers is lengthy and rigorous with a high degree of laying precision required. Additional media of various granular sizes for bedding support must be hauled to the site, adding more construction costs. Often, expensive dewatering pumps are necessary for these deep excavations to allow workers to connect sections of pipe materials in the trench. Installing historic sewer systems is costly to construct, disruptive to the surrounding community and environment, and requires imported materials.

Installation Solutions with the SBS™

SBS™ can be installed with several alternate and efficient solutions. The small diameter pipes and design requirements create higher tolerances for variable alignment for both vertical and horizontal dimensions. The SBS™ is not laid as deep as the historic system, providing greater design flexibility in location and from the reduced requirement for a steep pipe slope, as a result of the lack of solids in the effluent stream. SBS™ piping can be assembled above ground then lowered into the trenches with excavation by trenchers or, alternatively, horizontal boring technology can be utilized. In either case, the installation process will minimize the need to have large open trenches with high efforts required for reinstatement of the geology and surface.