The hopper unit is used for the root cutter or the cleaning nozzle. They are positioned on the branch with the unit and then powered with water.
The root cutter is used to remove ingrown roots and/or prepare the pipe wall for the rehabilitation
The cleaning nozzle can be attached the same way to flush the house connections from the main sewer. The nozzle works like the root cutter but just with one rotating spray jet.
The satellite-camera is positioned with the hopper unit at the branch and the integrated feed device helps to drive it up to 10 meters into the house connection.
The biaxial satellite-camera is positioned with the hopper unit at the branch and the integrated feed device helps to drive it up to 10 meters into the house connection.