Well pump is a pump that uses suction and pressure to produce something from a well, usually a liquid substance. The most common types of well pumps are those that are used for water wells and oil wells. For the home user, the most common well pump used will be a water well pump.
Well pumps come in various sizes. Residential well pumps may have less than one horsepower of energy in order to produce water. However, a commercial well pump often will contribute, along with other pumps, to supplying water for the entire community. Therefore, much more power will be needed.
Most current pumps are powered by electricity. However, there May times when there is no electricity or maybe a time when the well pump was installed before a point when there was electricity. A hand well pump is then needed to bring the water up from underground. In most cases, if they haven't been used for a significant period of time, they will require priming.