有的潜水泵使用一会儿，出水忽大忽小；有的潜水电泵使用10分左右，起动器跳闸断电；有电泵起动后水上不来；有的电泵电缆发热烫手；凡此种种都和选型配套有关。选型的原则是“以井定泵”和“以电定泵”。如果机井和供电情况都不知道就无法选好型。1、以井定泵的原则如下：（1 Some submersible pumps use for a while, the water suddenly big and small; some submersible pumps use about 10 minutes, the starter tripping off; pump does not start after the water does not come; some electric pump cable hot hot; all these are And the selection of related. Selection principle is “to set the pump” and “to set the pump.” If the wells and power supply are not aware of the situation can not choose the type. 1, the well to set the pump as follows: (1