JS Submersible Residue Water Drainage Pump. Also known as a puddle sucker. This portable low level drainage pump has the ability to pump water from flat surfaces down to approx 1mm and then the remaining flood water can be swept into the pump and then removed. A non-return valve prevents any water back flow, ideal for domestic water clean up, garages, cellars, basements, emptying of pools, storm and flood water removal.