Well Wizard®
Installation and Operation Manual
Rev. E 06-05-2023
5
How a Bladder Pump Works
The bladder pump has two alternating cycles
called Discharge and Refill.
Discharge Cycle
During the discharge cycle, water within the pump is
pushed to the surface by pressurized air or gas delivered to
the pump through the air supply tubing. When the
pressurized air fills the chamber between the pump body
and the bladder, it squeezes the bladder, closing the
bottom check valve and lifting the upper check valve,
pushing water up the discharge tubing to the surface. When
the full volume of the bladder is discharged or the cycle is
ended by the controller, the upper check valve closes to
prevent water in the tubing from draining back into the
pump.
Figure 2