Your well pump fills the tank until the air pressure reaches a pre-set “cut-off” point (usually around 50–60 PSI). When you open a faucet, the compressed air pushes water out without the pump running. As water leaves, pressure drops to a “cut-in” point (around 30–40 PSI), and the pump kicks on to refill.
Bladder Tank Foam Fire Fighting System for Industrial Safety
This cycle is called a drawdown cycle, and it’s where the magic lives. A properly sized tank gives you minutes of water on demand before the pump wakes up—enough to wash your hands, rinse a dish, or fill a pet bowl without any mechanical drama.
The bladder itself is usually made from butyl rubber or EPDM, the same material used in roofs and garden hoses. It flexes thousands of times over its lifespan—like your yoga instructor after too much coffee.
