80-55 irrigation water pump 1)Lift:55m 2)Flow:65m3/ ... nursery garden, it can also use in pump unit for water supply and drain of urban construction, factory ... and mine.PrincipleYou should fill the pump with water before start, then the impeller rotate with ... too high1,adjust2,pump shaft bended2,adjust or replace3,bearing wear seriously3,replace bearing 80-55 irrigation water pump