Pressure tank and pressure switch repair
If your pump clicks on and off every few seconds, the tank or switch is usually why, and the pump pays the price.
The pressure tank stores water under pressure so your pump doesn't have to start every time you open a tap. The pressure switch tells the pump when to turn on and off. When either one fails, the pump starts and stops far more often than it should, which wears it out early. Fixing a tank or switch is usually much cheaper than replacing a burned-out pump.
What are the signs of a tank or switch problem?
- The pump turns on and off every few seconds while water runs
- Pressure surges and drops at the faucet
- Clicking from the switch near the tank
- The pump won't start even though the breaker is on
- The pump won't shut off
- Water dripping or rust on the tank
Why do pressure tanks fail?
Most modern tanks have a bladder or diaphragm with a charge of air on one side. Over time the tank can lose its air charge, or the bladder can rupture, and the tank fills with water. A waterlogged tank can't buffer the pump, so the pump short-cycles. Tank air pressure is normally set about 2 psi below the pump's turn-on pressure, measured with the pump off and the water drained. Extension guides put typical tank life at around 10 years, with some lasting much longer.
Why do pressure switches fail?
The switch's electrical contacts burn and pit with use, and they can stick open or closed. Insects nesting in the switch housing can also keep it from making contact. The small tube that connects the switch to the plumbing can clog with sediment or iron, especially with East Texas well water, which throws off the readings.
What affects the cost?
- Recharging versus replacing the tank.
- Tank size. Larger tanks mean fewer pump starts but cost more.
- Switch and fittings replaced at the same time.
- Location. Tanks in tight well houses or crawl spaces take longer.
Prices come from the well company after they've diagnosed the problem. We don't quote prices ourselves, and a phone estimate is only a starting point.
Where we connect you with help
Common questions
Why does my well pump turn on and off so often?
Usually because the pressure tank has lost its air charge or the bladder has failed. Short cycling wears out the pump, so have the tank checked soon.
Can a pressure tank be recharged?
If the bladder is intact, a technician can often restore the air charge. If the bladder has ruptured or the tank is rusting, replacement is usually the fix.
Related services
More background: Smith County water well guide.
No water at the tap?
Call now instead of sending a form. A dead pump is a same-day problem.