A water table pump, commonly referred to as a well pump, is a mechanical device designed to extract groundwater from underground aquifers. These systems are positioned either above ground or submerged directly within a drilled well to reach the depth where the soil is saturated. By creating a pressure differential or using centrifugal force, the pump draws water upward through a piping network into a storage tank or directly to a distribution line.

The efficiency of these pumps is heavily dependent on the local depth of the water table, which fluctuates based on seasonal rainfall and geological conditions. In shallow areas, a jet pump may be used to pull water via suction, whereas deeper water tables require submersible pumps that push water to the surface. Proper installation ensures a consistent supply for residential, agricultural, or industrial needs, even when the surface is dry. Maintenance is crucial to prevent mechanical failure and to ensure that the drawdown during pumping does not drop below the intake level. Modern systems often include pressure sensors and automated switches to maintain a steady flow and protect the motor from running dry.