About Well Pumps
An Introduction to Well Pumps
Well pumps are the modern day equivalent of windmills, which were used to move
water from one place to another over 100 years ago. Like windmills, they are particularly handy for irrigating
crops, but they also have other uses. Well pumps can be used to provide livestock with water, to supply
water to remote locations, or to act as heating and cooling mechanisms for geothermal systems.
There are two general types of well pumps: jet pumps and submersible well
Shallow well jet pumps are used for wells under 25 feet deep, and have no working
parts submerged in water. Deep well jet pumps on the other hand, can be used for wells up to 75 feet deep, and have
their ejectors installed in the well itself.
Submersible Well Pumps
Submersible well pumps, as their name imply, are used underwater in
wells. A small electric motor (called a driver) is installed in the well shaft, usually below the pump itself, and
an electric cable is attached to the motor. Piping is then fitted from the pump, through the length of the shaft
and into the home. Unlike their shallow-end counterparts, submersible well pumps may be set hundreds of feet
beneath the water in a well. When the pump is activated, the motor, which consists of a number of impellers and
diffusers which spin on a common shaft (called stages), pushes water up out of the well. Read more about
submersible well pumps.
On the next few pages, we will take a closer look at how
submersible well pumps work and the types of energy they
use. We will also provide you with tips that
can save you hundreds of dollars a year in utility bills.