Downer PipeTech


The problems and solutions associated with sewers and stormwater connections are divided into pipes and associated structures.

Common Pipe Failures

Typical problems encountered with sewer or stormwater pipes include:

  • Intrusions
  • Encrustation
  • Blockages due to tree roots, debris and even concrete
  • Cracks/breaks/fractures
  • Leaking or broken/displaced joints
  • Disused junctions
  • Bulges and localised irregularities
  • Short ends
  • Poorly cut junction re-openings
  • Lateral connections blocked
  • Failed liners causing blockages
  • Pipe lifting holes left unplugged – risk of soil ingress and surface subsidence
  • Corrosion
  • Leaks

Structures Including Manholes & Culverts

Typical problems encountered with sewer or stormwater related structures include:

  • Gas attack of concrete
  • Concrete degeneration
  • Infiltration gushes
  • Groundwater infiltration
  • Leaks
  • Structural collapse through corrosion
  • Cracks

So what is the Solution?

Depending on the desired performance outcome: