In the trenchless method, a nozzle is maneuvered by an operator throughout the whole piping system to clean and epoxy coat it.
- Operator’s expertise is needed to move the nozzle through the bends and rises in the piping system.
- In addition, the operator has to identify the problem areas inside the pipe, which is done by inserting a endoscopic camera inside the pipe.
For a novus operator, this process may take a long time, costing significant man-hour.