Air Cooler Pump 1, Used in air cooler 2, Quietly and safety 3, High quality and low price Cheap dedicated Air ... :CE/GS.UL.CUL.PSE.EK.SAA.BS Our pump are all tested and examined one by one before ... is clean2,Cleaning the water pump every week. Do not mover the shaft.3,When the pump can not work:a, ... before use2, Use in the water 3, Don't catch the pump by cable4, Pump work water temperature below 45°C5, ...