To check the pressure in a well pressure tank, you'll need a tire pressure gauge. Here's a step-by-step guide:
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Locate the Schrader Valve: The Schrader valve (like the one on a car tire) is usually found at the top of standard metal well tanks. On composite tanks, it's typically located near the base.
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Remove the Cap: Unscrew the cap that protects the Schrader valve.
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Use a Tire Pressure Gauge: Firmly press the tire pressure gauge onto the valve stem. You should hear a brief hiss of air.
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Read the Pressure: The gauge will display the current air pressure in the tank.
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Compare to the Cut-In Pressure: This is a crucial step. The pressure should be 2 PSI below the pump's cut-in pressure. (The cut-in pressure is the pressure at which the well pump turns on). For example, if your pump cuts in at 40 PSI, the tank's air pressure should be 38 PSI. If the pressure is significantly different, you might need to adjust it (see below).
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Replace the Cap: After checking (and adjusting if necessary), replace the protective cap on the Schrader valve.
Important Considerations:
- Turn off the pump and drain the tank before adjusting the air pressure. This is critical! You can do this by shutting off the breaker to the pump and then opening a faucet until the water stops running.
- Adjusting the Pressure: If the pressure is too low, use an air compressor to add air to the tank via the Schrader valve. If it's too high, gently depress the valve core to release air.
- Waterlogged Tank: If water comes out of the Schrader valve when you check the pressure, the bladder inside the tank may be damaged, and the tank might need to be replaced. A waterlogged tank means the bladder has failed, and water is occupying the space intended for compressed air.
- Safety First: Always disconnect power to the well pump before working on the pressure tank.
In summary, checking your well pressure tank is a straightforward process involving a tire pressure gauge and awareness of your pump's cut-in pressure, and doing so regularly will ensure the optimal functionality and longevity of your well system.
