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Note that it is recommended to check the condition of your tank and its air pressure at least once a year. Here are the steps to check and calibrate your pressure tank. You can also watch our help video.

Steps to follow

  1. Connect a garden hose to the bottom of the tank (see photo above).

  2. Close the main valve on your tank.

  3. Open the drain valve and let the water flow.

  4. Watch at what pressure your pump starts; you will hear a click.

  5. When you hear the click, watch the pressure and close the drain valve.

  6. You have just seen the starting pressure of the pump.

  7. Keep watching to see the stopping pressure.

  8. Take note of both pressures.

  9. There should be a 20 psi difference between start and stop. Ex : 30-50 psi or 40-60 psi

  10. If you have more than 20 psi difference, it is best to replace the switch. (2 to 4 psi is tolerable).

  11. Tank air pressure should be 2 psi less than starting. Ex: starting at 40 psi your tank pressure should be at 38 psi. The air pressure must always be taken without water. To do this, follow the next steps.

  12. Close the pump breaker.

  13. Empty the tank until there is no more pressure.

  14. When your water tank is empty, it’s a good time to check the integrity of the tank. Move the tank from left to right. If you hear water getting stuck inside the tank, it means that your balloon is perforated and you need to replace it.

  15. Take a minimum 50 psi tire gauge.

  16. Check tank pressure.

  17. Calibrate the air with a compressor according to the starting pressure – 2 psi

  18. Open the tank drain valve and hold it there. (you will probably need someone to help you)

  19. Go to the circuit breaker and turn it back to the open (on) position.

  20. Let the water flow by closing the drain valve and allowing the pump to fill the tank. Do 4 start and stop cycles.

  21. Let the pump stop and open your main valve.