WELL PUMPS are used to deliver water from an underground water source to your home. There are three types of well pumps, Shallow Well Jet Pumps, Convertible Well Jet Pumps, and Deep Well Submersible Pumps. Shallow Well Jet and Convertible Well Jet Pumps are NOT submersible and are usually placed inside a protected area outside a well. Deep Well Submersible Pumps typically are submerged inside your well.