For domestic use ‘puddle pumps’ are the best option. Puddle pumps pump very low levels of water, perfect for use on flat surfaces in basements of flooded rooms in properties unfortunate to have been flooded. Puddle pumps are portable and do not require any installation and can be picked up and moved to another room, they can also be used internally and externally. Submersible Pumps, generally have to be submersed in water. Often installed in sumps or basements that flood often and will automatically active when water rises and need pumping away from the building. Submersible pumps cannot run dry, unlike puddle pumps which sit on the surface when pumping.