Domestic water pump is a mechanical device used to boost the water pressure and flow rate in a homes water supply system. It is put in residences with poor water pressure or those that need to pump water from a well or storage tank. By generating a pressure difference between the water supply systems intake and output, the pump causes water to move through the pipes at a greater pressure and faster rate. Domestic water pump comes in a variety of designs, including jet pumps, submersible pumps, and centrifugal pumps.