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1. How does a shallow well work?
   

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   Answered 16 years ago.

3 Answers

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   A shallow well is made by boring into an underground aquifer, usually at a depth of less than 100 feet. Shallow wells are often used where the water table is very high.

   Features

   A shallow well typically uses a jet pump to draw water out of the well. The pump is located either in the house or in a well house directly above the well.

   Effects

   Although a shallow well may be as deep as 100 feet, a jet pump only pumps water from a depth of about 25 feet.

   Function

   Jet pumps are powered by electric motors that run a centrifugal pump, which works to draw the water up by forcing it through a narrow opening and causing the speed of the water to increase.

   Considerations

   Shallow well jet pumps must be primed with water to pull water out of the well. The water remains in the pump due to a one-way valve installed in the line. Once the water is pumped past the valve, it cannot go back into the well.

   Fun Fact

   You can also use an old-fashioned pitcher pump on a shallow well. A pitcher pump is a hand-operated pump that uses suction to draw water from the well.

   Source:

   Groundwater Foundation: Wells and How They Work

   Popular Mechanics: How It Works--Well Water Pump

   Global Security: Pumps

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