Causes and troubleshooting of insufficient pumpflow:
1. Reason: The pipeline and the pump runner impeller arepartially blocked, the scale is accumulated, and the valve opening isinsufficient.
★ Remedy: Remove the blockage and re-adjust the valve opening.
2. Reason: The voltage is low.
★Remedy: Voltage regulation.
3. Reason: The impeller wears.
★Remedy: Replace the impeller.
Causes and troubleshooting of Pump power toolarge:
1. Reason: Exceeding the rated flow rate.
★Remedy: Adjust the flow outlet valve.
2. Reason: The suction stroke is too high.
3. Reason: The water pump bearing is worn.
★ Remedy: Replace the bearing.
Want to see more about DIFFUL water pumps, please click：http://www.diffulpump.com/ oid1740212/Deep-Well-Pumps.htm http://www.diffulpump.com/ oid1740212/Deep-Well-Pumps.htm