During works:                                                                    After works:

After recently attending an emergency call from a central London School, our engineers were quick to diagnose the cause of the blockage as broken section of pipe work which had begun to colapse. Unfortunatley the location of the broken drain was beyond a foundation wall in the caretakers office. We were instructed to carry out a manual drain repair by means of excavation, which required a tunelling team. Works commenced early on a Saturday morning and with four very commited engineers working as a great team, the drainage system was up and running late Sunday evening, allowing the School to re-open as normal Monday.

After many years of using drain locating equipment, we have finally found a system which offers tracing to a depth of 8 Metres, with an accuracy or 200mm

A small sond is sent through the drain to be traced, propelled by either High Pressure Water, or standard drain rods. Once the sond is within the vicinity of the section of pipe to be traced, the hand held locating device is passed over the ground showing a mapping system on the screen. The map guidance feature eventually plots the drain line ready for excavtion/repair.

We have recently completed two major excavtions based upon the guidance of this equipment, and in both cases the excavtions proved pin point accurate, thus minimising disruption and unnecessary excavation.