The pump is responsible for drawing (pumping) the water from the well by way of electric motor and into the pipeline that leads to the water storage tank in the home. There are different types of well pumps for different situations: submersible, reciprocating, jet, shallow and deep well to name the most common. Some pumps are designed to work while submersed in the well, and others are designed for above ground use. Submersible well pump installations are the most common.
The well pump assembly that installs in the well casing includes the drop pipe, which the pump attaches to and which carries the water out of the well, a torque arrestor, and a wire guard, also called a cable guard.