How Does a Well Work?

Well Basics

For many people in the world, the water that they use is not pipe-lined or provided by their neighboring water company--their water is provided by pumping it via a well system. Wells vary in size and deepness. This means that the water availability will vary as well. There are wells that are small and used only by single families. There are also wells that are so large that a whole village can share the use of the well.

Retrieving Water From a Well

The traditional way to retrieve water from a well is to tie a rope around a bucket and draw the water that way. However, water can also be drawn and retrieved from wells by means of a pump. The pump used to draw water from wells is referred to as a submersible pump. The submersible pump operates by electricity. They are generally exceptionally dependable pumps and are also very efficient for pumping water out of a well. The electric submersible pump used for wells is the same type of pump used to drain water from a home or basement when floods occur.

Electrical Submersible Pumps

With electric submersible pumps, no exterior water or other outside substances can penetrate into the pump because they sealed. The various parts of an electric submersible pump include the pump, the motor, the intake, the cable and the equalizer. The water travels into the electric submersible pump by means of suction. The water is then discharged out of the pump. In every electric submersible pump, there is also a centrifugal pump. Water travels into a centrifuge type of device which is like an impeller. The centrifuge device rotates very fast, causing the water to be discharged at a much faster speed and force in comparison to when it goes into the pump. Centrifugal force is what causes the water from the base of the well to be drawn up effortlessly toward the top of the well. Although electric submersible pumps are widely used, they have problems functioning properly in locations where there is vast amounts of sediment or sand. However, because these pumps don't have many movable parts and are well sealed, they generally last long and can be easily repaired when problems occur.

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• How Does a Well Work