What makes a submersible motor different?

As a professional water systems contractor, you’ve probably faced situations like this: you’re installing a submersible pump/motor, and the homeowner wants to know why a submersible unit costs “so much”. He may have formed this opinion because he recently replaced a motor in an HVAC unit, a sump pump, or even a jet pump. In any case, chances are good that he is comparing the submersible to an aboveground motor or pump. As you know, this is a classic case of comparing apples to oranges, since submersible motors are very different from aboveground motors. This issue of Franklin AID will review some key aspects of submersible motor construction in order to help professional water systems contractors like you explain to a homeowner why a submersible motor appears to be more expensive, but worth the cost. Continue reading