A lift pump is a type of pump that is used to move fluids from a lower level to a higher level. It works by creating a partial vacuum in a pipe that is submerged in the fluid.
When the pump is activated, the piston or plunger inside the pump chamber moves upwards, creating a low-pressure area beneath it. This low-pressure area causes the fluid to be drawn up the pipe and into the pump chamber.
As the piston or plunger moves back down, the pressure inside the pump chamber increases, forcing the fluid out of the pump and up to a higher level.
This process continues as the pump cycles, with the piston or plunger moving up and down to draw fluid into the pump and then push it out to a higher level.
Lift pumps are commonly used to move water from a well to a storage tank or to pump water from a lower level to an upper level in a building.