Abstract: An apparatus is disclosed for an improved rotatable gutter system for mounting on a building for disposing of debris collected therein. The apparatus comprises a plurality of supporting brackets mounted to the building with each supporting brackets having a journal mount. A rod is rotatably supported in the journal mounts and defines an axis of rotation. An elongated trough is longitudinally mounted on the rod by a plurality of trough supports. An eccentric is affixed to the rod with a cable being affixed to the eccentric. Energy applied to the cable is transmitted to the eccentric to rotate the elongate trough about the rotational axis into an inverted position to permit debris collected in the trough to fall therefrom. The eccentric provides a variably transmittal of the energy from the cable to the rod.