Solar water pumps are typically divided into two categories: submersible pump and surface pump. A submersible pump is installed under water, usually in a well, but can also be in a pond or stream if raised off the bottom. A surface pump is installed above the water, with an intake hose feeding the pump from the water source, and the output hose feeding the tank. Pumps are able to push water out much higher than they are able to suck water in, so the they need to be close to the water source. Keep the head, or the height difference between the water and the pump,as low as possible.