Sewer Inspection Technology

Sewer inspection technology forms the backbone of a Sewer Safety Inspection (SSI) program. It’s used to monitor the performance of newly installed pipes and watermains, investigate unexplained flow conditions, locate blockages and inspect leak areas.

Closed Circuit Television (CCTV) Sewer Inspection:

CCTV equipment is leveraged to investigate sewers, maintenance holes, chambers and other underground features from the surface. A CCTV camera travels along the sewer mains and provides video footage for inspection. It can determine the alignment of the main sewer and locations of lateral connections while side launching capabilities can determine the alignment of the lateral connections. A sonde can be used to map sewer alignment on the surface using electromagnetic designating equipment.

Pole Camera Techniques:

Pole camera equipment can be utilized to investigate sewers, maintenance holes, chambers and other underground features from the surface. The pole cameras are to be inserted from the surface with zoom lenses. Photographs are taken to assist in the investigation of underground features. This technology can inspect chamber configurations, pipe alignments and the presence of utilities can be inspected using this technology. Cameras are to be fitted with automatic compensation for low light conditions typically found in subsurface investigations.

Electromagnetic Sonding for Sewer Locating:

The alignment of non-toneable sewers can be verified by pushing a sonde through the pipe. This is then mapped on the surface using electromagnetic designating equipment. Chamber depths, pipe configuration and the presence of debris may influence the effectiveness of this technique.

multiVIEW Locates Electromagnetic Sonding for Sewer Locating

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30 years industry experience

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We foster a culture of continuous improvement through comprehensive internal and external training. Our Health & Safety culture is backed by our HS&E Manual.

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