Sonar Survey

While CCTV is the standard acceptable method of visually inspecting pipelines above the waterline, it cannot provide visual information on internal pipe conditions below the water level.

A sonar inspection of a fully or partially charged line provides a two-dimensional profile of the interior pipe wall. Using the sonar software, a circle overlay is projected, sized, and moved anywhere within the image for checking erosion or remaining wall thickness. Accurate measurements can be made between any two points within the sonar image. Debris level, size of blockage, grease level, defects and so forth can be quantified.

In partially charged lines, the Sonar can be combined with our Panoramic Camera to provide a simultaneous composite image of the pipe both above and below the waterline.

Sonar Profiling Applications:

• Determine silt, grease levels & blockages
• Determine pipe defects (cracks, holes, etc.)
• Pre & Post inspection of rehabilitated or cleaned pipeline
• Determine corrosion build-up
• Determine pipe deterioration

Sonar Water Level and Debris Report