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By certification 
Intake and start
Before starting, slowly open the air valve switch about 1/2 to 3/4 revolution, once the pump starts, and then continue to increase to the required intake volume, if the intake volume increases, the flow rate does not increase, certainly "cavitation" is generated, and then we should slowly turn off the air valve until we get the most appropriate air flow and liquid flow ratio.
Main function parameters as below :
flow volume : 0-1070 L
pressure: 8.6 pa
absorb distance : 7M
spray distance : 82 M
entire pump: L* W * H=499*425*815mm
Weight : 30 Kg
http://www.zqaodd-pumps.com/
