Fire pumps are required when the water pressure and volume available from the local main supply is not sufficient to meet the hydraulic design requirements of a fire sprinkler system. This is often the case in high rise buildings or when a high sprinkler head pressure is required to generate a high volume of water from the sprinkler, for instance in storage warehouses. They are typically used to pump water into the fire sprinkler system from a static tank or reservoir. A small jockey pump maintains the static pressure in the sealed fire sprinkler system so that when a sprinkler is activated, the pressure drop is sensed by the fire pump automatic controller which causes the fire pump to start. As well as providing a wide range of suitable pumps for use with water storage tanks.