Folding Brush Cleaning System
Following a PIV survey of a 370m long x 1.6m diameter raw water
transfer pipe for Thames Water/Barhale our profiling sonar had revealed
circa 175m3 of accumulated silt & debris.
Our Client was unable to source a proprietary method for removing
the silt & debris, so we proposed a modification to our unique
folding-brush pipe cleaning system that would achieve
the level of cleanliness required for an engineer to carry out a
Our divers installed stop logs, de-watered the pipe and set-up
an upstream & downstream winch and roller system.
Silt & debris was recovered to the downstream access chamber
which was subsequently removed by a vacuum tanker for disposal.
Progress was monitored at intervals by a remote CCTV rig or by
our long-traverse confined space man-entry team. The project was
completed on budget and on time.
The system is effective in large diameter & long distance pipes
effective in wet/dry & operational pipes causes
no-damage to old/delicate pipes highly adaptable to suit
We have successfully cleaned pipes and tunnels varying in diameter
between 500mm 2500mm over lengths of up to 1500m.