Avoid bending at the waist when loading or unloading hampers. Some hampers are equipped with bungee-cord systems to raise or lower the load. Use hamper dumpers, lifts, or other such equipment when available. When manual unloading is necessary, unload the hampers until they are half emptied, and then tip the hampers over to unload the remainder. (See Exhibit 23.) Do not place heavy objects in hampers because employees cannot lift them without placing excessive strain on the back.