3. Insufficient flow of self-priming pump
Reasons: the power speed is not matched or the belt slips, which makes the speed low; the blade installation angle of the axial flow pump is too small; the head is insufficient, the pipeline is too long or the pipeline has a right angle bend; the suction head is too high; the bottom valve, the pipeline and the impeller is partially blocked or impeller is defective; the water outlet pipe leaks seriously.
Mearsures: restore the rated speed, remove the belt grease, adjust the belt tightness; adjust the blade angle, lower the installation position of the water pump, shorten the pipeline or change the curvature of the pipeline; seal the leak of the water pump, compact the packing; remove the blockage Replace the impeller; replace the leakage reduction ring to block the leakage.