Abstract: A technique which facilitates cleaning of an interior of a pipe via access through a lateral hole in the pipe. The technique utilizes a control bar head which may be coupled with a control bar via a coupling feature. A shroud is positioned around the control bar head. The shroud may have a suitable shape with an interior sized to enable linear movement of the control bar head along the interior between an extended position and a retracted position. Additionally, the shroud has an exterior sized to enable insertion through the lateral hole in the pipe. Magnets may be coupled with the control bar head and oriented to pick up particles in the pipe when the control bar head is located in the extended position. When the control bar head is shifted to the retracted position, the magnets ensure retrieval of the particles into the shroud for removal from the pipe when the system is withdrawn.