How To Prime A Well Pump With A Pressure Tank

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How to Prime a Well Pump with a Pressure Tank

As a seasoned homeowner, I’ve encountered my fair share of plumbing emergencies, one of which was a perplexing issue with my well pump. After countless hours of troubleshooting, I discovered that the culprit was an unprimed pump. Determined to solve this problem myself, I embarked on a quest for knowledge and devised an effective method to prime my well pump with a pressure tank.

A well pump, the heart of a private water system, draws water from an underground source and delivers it to your home. The pressure tank, an essential component, maintains water pressure in the system. When either of these components becomes unprimed, water flow ceases, creating a household crisis.

The Importance of Priming

Priming a well pump involves filling it with water to create a seal that prevents air from entering the system. Air bubbles can cause the pump to lose its prime, resulting in cavitation, a phenomenon where the pump’s impeller spins in a mixture of water and air, reducing efficiency and potentially damaging the pump.

Priming a pressure tank, on the other hand, involves filling it with water to create a cushion that absorbs pressure fluctuations. An unprimed pressure tank can lead to water hammer, a sudden increase in pressure that can damage pipes and fixtures.

Step-by-Step Guide to Priming a Well Pump with a Pressure Tank

Materials:

  • Bucket or hose
  • Water
  • Screwdriver

Instructions:

  1. Turn off the power to the well pump at the circuit breaker.
  2. Close the outlet valve on the pressure tank.
  3. Locate the priming plug on the top or side of the well pump. It is typically a threaded plug with a square head.
  4. Remove the priming plug using a screwdriver.
  5. Fill the well pump with water using a bucket or hose until it overflows from the priming hole.
  6. Replace the priming plug and tighten it securely.
  7. Open the outlet valve on the pressure tank.
  8. Turn on the power to the well pump.
  9. Run the pump for several minutes to fill the pressure tank with water.
  10. Check the pressure gauge on the pressure tank. It should read between 30 and 50 psi.
  11. Adjust the pressure switch if necessary to maintain the desired pressure.

Tips and Expert Advice

  • Use clean water to prevent clogging the well pump or pressure tank.
  • Lubricate the priming plug with Teflon tape or sealant to prevent leaks.
  • If the pump does not prime after several attempts, it may have a leak or other issue that requires professional repair.
  • Inspect the pump and pressure tank regularly for leaks or other signs of damage.

Frequently Asked Questions

Q: How often do I need to prime my well pump and pressure tank?
A: Ideally, only when they become unprimed due to power outages, maintenance, or repairs.

Q: Can I use antifreeze in my well pump and pressure tank?
A: Yes, you can use non-toxic propylene glycol antifreeze during winter to prevent freezing.

Q: What is the ideal pressure setting for a well pump and pressure tank?
A: Typically between 30 and 50 psi.

Conclusion

Priming a well pump with a pressure tank is a crucial maintenance task that ensures a reliable water supply for your home. By following these steps, you can effectively prime your system and avoid the inconvenience of an unprimed pump.

If you are experiencing any issues with your well pump or pressure tank, I highly recommend consulting a qualified plumber for professional assistance.

Repeated Loss of Well Prime - How to Diagnose & Repair Repeated Loss of ...
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