Aquarium Water Pump-400GPH-25W- Ultra Quiet Fountain Pump Save Electricity for Pool Pond Draining Statuary Hydroponics

1.Voltage?110-120V/60Hz, 10 feet pumping head. 2.Type: aquarium pumps submersible. Please complete installation first, then put all of the pump into water and switch on. The pump should work with water, so it must put in water before switched on, or it maybe breakdown. 3.No-load operation is prohibited. Running in the air without water for a long time will shorten the service life and make a lot of noise. Please turn off the power when changing the water. 4. If the pump suddenly stops working or makes noise, please turn off it quickly. It is recommended to clean the shaft regularly, about once every two months. 5.Working temperature: 40-115F. 6.The pump may be damaged in the shipping process, if there is any problem with the pump you received, please contact us.