To maintain a Parkdecor gravel surface, use a light-weight slatted rake to remove organic matter (leaves, twigs, etc.) and other debris; this also serves to renew and regenerate the top layer by a few millimetres. In the event of mechanical damage to the surface, the original material at the repair site is loosened, moistened and simply compacted by pressing down. Under no circumstances should additional material be added to the original compacted area, nor should the surface be vibrated in any way!