CHM Group is the only company in the country utilising bespoke equipment to facilitate French Drain Recycling.
The process carried out by this custom designed machine involves the: • Lifting
• Segregation
• Dry cleaning of the filter material and the
• Return of the graded and cleaned stone to the drain it came from.
The machine is normally set to clean a width of 600mm and to a depth of 300mm, although it has the capacity to clean down to 600mm.
Environmental Benefits.
This process is extremely environmentally desirable in that it:
• Reduces the need to excavate further areas of the countryside
• Reduces the need for disposal of spoiled drainage material, a further environmental consideration
• Major cost savings.
This new drain cleaning procedure forms a significant step forward in recycling methods now being promoted in Road Construction and Maintenance.


