A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The bottom of the pedestal is provided with a flange, which is attached to the bottom of the process chamber by a flange holder. The indicator is positionable in front of the item to be processed from the shelf. The entire string of decorative and holiday lights can be wound around the rod, taking care to separate successive wrappings around the central rod by using the spacing of the nodules.