The pump can not pump water
(1) Check whether the pump body is filled with water?
(2) Check whether the filter is blocked?
(3) Check whether the air leakage occurs due to the installation of the connecting hoop of the water inlet pipe?
(4) Check whether the air leakage occurs due to damage of the inlet pipe?
(5) Check whether the suction is too high?
(6) Water seal damage resulting in water leakage.