... : CE/GS. UL. CUL. PSE. EK. SAA. BSOur pump are all tested and examined one by one before selling ... , Please keep the water is clean2, Cleaning the water pump every week. Do not mover the shaft.3, When ... the pump can not work: A, please check the electrocircuit b, not any lees at the ... , Use in the water3, Don't catch the pump by cable4, Pump work water temperature below 45° C5, Keep ...