Ensuring Water Safety in Hong Kong: Government Deploys SUPERIOR Inspection Robot to Trace Source of Pipe Sediment

A recent water quality concern in a Hong Kong residential estate has drawn wide public attention, as asphalt-like sediment was discovered in the estate’s water mains. In response, the local water department initiated an urgent investigation and selected the SUPERIOR pressurized pipeline inspection robot to locate the source of contamination.

During the inspection, SUPERIOR identified accumulations of sediment inside a key section of the water mains. Detailed analysis revealed that the sediment likely originated from a 400m long bitumen-coated pipe, a material previously used in older water infrastructure across the city. As residential occupancy and water usage increased, elevated flow and pressure are believed to have dislodged these coatings, triggering the sediment issue.

To resolve the situation, the local department carried out multiple rounds of high-pressure flushing, which significantly reduced the visible sediment in the residential area. However, officials stressed that identifying the precise condition was essential to preventing similar incidents in the future.

SUPERIOR enabled a non-invasive, real-time internal inspection of the pressurized pipeline, without interrupting the water supply or disturbing residents. Compact probe with inertial sensors for real-time attitude display, optimized for complex pressurized pipelines with branches, butterfly valves, and bends. It features multi-sensor fusion, supports video, sonar, hydrophone (20Hz–120kHz, >–210dB), and locator modules for accurate defect detection and positioning.

A government representative praised the robot’s precision and adaptability, stating that such advanced technologies are helping strengthen the scientific basis for decision-making in urban infrastructure management. A formal investigation report will be submitted to the Drinking Water Safety Advisory Committee in the coming weeks.

This case underscores the critical role of robotic inspection technology in supporting water safety and sustainable urban development. By enabling efficient source tracing and pipeline condition evaluation, BWELL’s solutions are helping Hong Kong move toward a smarter, safer, and more resilient public water system.