?3、水泵出水量不足?The waer yield?of water is not enough?1、进水管路或叶轮有水草杂物?2、转速过低?3、输水高度过高?4、泵盖及叶轮磨损间隙过大?5、填料进气?6、马力不足?7、进水管口插入水中深度不够?1. There are waterweeds and sundries in?inlet pipes or impeller?2.The rotate
