混流泵?2、水泵起动后有一股水就不出水了?After starting ,?the pump only send one stream water then no water runs out?1、吸入的水中有过多气泡?2、吸水管中窝存空气?3、吸水管或连接处垫料不严密有进气现象?4、底阀或叶轮有水草杂物填塞?1.There are too many bubbles in the?indr