2 HP Single Stage Self Priming Sprinkler Booster Pumps Residential Drive Arm Fits SIME Select a Product:Cap Part DC 1 1 2" Aluminum Drive Arm Fits SIME Ambo Sprinkler ( reorder # SIM 30327 ) 342 sqft of area at a time and it's portable to move around to cover even more Their cast iron case construction and stainless steel impeller makes this pump rugged and reliable and operates at a flow range of between 5 and 45 gallons per minute This 2 HP water pump can be used for boosting existing systems that already have a water source but just need extra pressure or it may be used as a self priming supply pump to draw water from a reservoir or tank