These Submersible Sewage Pumps are ideal for automated fixed home applications, as well as for emptying flooded cellars and garages. They are also very helpful as a portable pump in an emergency, for clearing muddy swimming pools, fountains, excavations, and subways, as well as for draining waste from tanks or rivers. These pumps are capable of lifting liquids from septic tanks, even when there are suspended materials present. Pump action is permanent and automatic with a level float switch.