The Crust Buster hand-held power agitator from Crust Busters has an 80-inch shaft and a two- or three-blade propeller that mix a septic tank or grease trap in five minutes. It comes with 2-, 4- and 6-foot extensions, and a short three-blade shaft that adapts to the two-blade unit. 763/878-2296; www.crustbusters.com.
