n Water&Sanitation Africa - Inspector gadgets save the sewers : trenchless technology

Volume 11 Number 1
  • ISSN : 1990-8857


Before embarking on a trenchless technology project for the repair of sewage pipelines, it's essential to have a clear idea of the level of deterioration before taking the next step. CCTV, and laser and sonar profiling provide a good picture of what lies ahead.

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