Dewatering in its simplest term is the removal of water from solid material or soil by a process of solid-liquid separation. Construction dewatering, unwatering or water control are common terms used to describe removal or draining ground water or surface water from a riverbed, construction site or mine shaft. High Density Polyethylene Pipe (HDPE) is naturally suited for dewatering projects where potential corrosion and chemical attack is high and field conditions are less than ideal. Using HDPE pipe in a dewatering application lowers transportation and disposal costs, reduces offensive odors and its light weight and flexibility allows for installation in difficult conditions where heavy equipment may not have access. HDPE can be directionally drilled to minimize disruption to surrounding land and communities. HDPE pipe also has a high strain allowance which reduces the chance of breaking pipes due to water hammer effect (when fluid is suddenly forced to stop or change direction suddenly). HDPE has excellent chemical resistance for even the harshest environments and can be fused together to create a leak free pipeline. BDI dewatering pipe is made from PE 4710 and is available up to 6" in diameter.

Benefits of HDPE for dewatering

  • Continuous lengths available as well as stick lengths
  • One step installation offers an economical advantage
  • Conduit diameters available in ½” to 6”
  • PE 4710 resin
  • High pressure tolerance in a lightweight pipe
  • Can be used multiple times
  • Resistant to aggressive chemicals found in the soil and environmental cleanups
  • Easily joined by welding or mechanical couplers
Blue Diamond HDPE pipe with its chemical and corrosion resistance, flexibility and light weight is ideal for dewatering.

Picture supplied by Griffin Dewatering