of well pumps can be stated in one of two ways. Typically,
the pressure is stated in PSI, which stands for pounds
per square inch. 1 PSI is equal to 2.31 feet. The second
way to state the pressure of a well pump is the vertical
lift or LIFT. For example, when a submersible well pump
is operating, it forces water through a pipe. If the
pipe is vertical, then the pipe will have pressure throughout
it. The longer the pipe is, the more pressure the pump
will need in order to fill it. However, if the pipe
is horizontal then the pressure is converted to flow.
The only pressure in the situation of a horizontal pipe
is the pressure that is exerted due to friction as the
water flows through the pipe.