... Approbate 2.clean water pump 3.single stage . 4.water from well, pool, river 5.to garden, boosting pressure. QB series Peripheral PumpThe peripheral water pump is ... the correct function of the pump, use clean water, non-aggressive liquids only, without sand or other solid impurities.clean water pump WORKING CONDITIONS:Max temperatuer ... .9QB-700.750.553.645509.4QB-8010.754.8506010 QB clean water pump