Obtain a new pump.
Determine what type of pump you need. Submersible pumps are used in deeper wells and will be beneath the ground in a well casing, while a jet pump is used in shallow wells that are less than 25 feet (7.63 m) deep and will be above ground.
Find out the power ratings, the gallons (l) per minute pumped and the well size before you install a new pump.
Locate well pumps at a water supply retail store, hardware store or online. When replacing well pumps, be sure to purchase the correct type of pump.