How to Replace a Well Pump

How to Replace a Well Pump: A Step-by-Step Guide

If you’re experiencing problems with your well water system, it might be time to replace the well pump. A malfunctioning well pump can disrupt your water supply and cause various issues. In this comprehensive guide, we will walk you through how to replace a well pump step by step.

Understanding Your Well Pump

Before diving into the replacement process, it’s essential to understand the basics of your well pump. Most well systems have either a submersible pump or a jet pump. Submersible pumps are located deep within the well, while jet pumps are typically above ground. Discover how to reset well pump?

Understanding Your Well Pump

Step 1: Safety First

Safety should always be your top priority when working on any home improvement project. Before you begin, ensure you have the following safety equipment:

  • Safety goggles
  • Gloves
  • Proper footwear
  • A well-ventilated area

Step 2: Turn Off Power

Locate the power supply to your well pump and turn it off. This step is crucial to avoid electrical accidents while working on the pump.

Step 3: Drain the System

Next, drain the water from your well system. Open a faucet connected to the well to release any pressure and empty the pipes.

Step 4: Disconnect the Old Pump

Carefully disconnect the old well pump from the electrical supply and plumbing connections. Make sure to label the wires for easy reconnection.

Step 5: Remove the Old Pump

If you have a submersible pump, you’ll need to lower a pump hoist or lift the pump out with a helper. For jet pumps, simply disconnect it from the piping.

Step 6: Install the New Pump

Place the new well pump in the well casing. Ensure it is securely positioned and doesn’t touch the sides of the casing.

Step 7: Reconnect the Plumbing

Reconnect the plumbing, making sure all connections are tight and secure. For submersible pumps, use a torque arrestor to prevent twisting of the pipe.

Step 8: Reconnect the Electrical Wiring

Carefully reconnect the electrical wires, following the labels you made during disconnection. Double-check the connections to avoid any mistakes.

Step 9: Turn On the Power

Turn the power supply back on and monitor the pump’s operation. Ensure it runs smoothly without any unusual noises.

Step 10: Prime the System

For jet pumps, you may need to prime the system by filling it with water. Follow the manufacturer’s instructions for your specific pump.


Replacing a well pump may seem like a daunting task, but with the right tools and knowledge, it can be done safely and efficiently. Remember to prioritize safety, follow the steps carefully, and consult a professional if you’re unsure about any part of the process. The good factors of well waters, such as their natural purity and reliability, make this endeavor especially rewarding for those who rely on them.

Frequently Asked Questions

Q1: How often should I replace my well pump?

Well pumps typically last 8-10 years, but this can vary depending on usage and maintenance. If you notice a drop in water pressure or unusual noises, it may be time for a replacement.

Q2: Can I replace a well pump myself, or should I hire a professional?

While it’s possible to replace a well pump yourself, it’s essential to have the necessary skills and tools. If you’re unsure, it’s best to hire a qualified professional.

Q3: What are the signs of a failing well pump?

Common signs include low water pressure, sputtering faucets, air in the water lines, and frequent cycling of the pump.

Q4: Can I use any well pump for my system?

No, it’s crucial to select a pump that is compatible with your well’s depth and water demand. Consult a well pump expert for guidance.

Q5: How much does it cost to replace a well pump?

The cost can vary widely depending on the pump type and labor involved. On average, it can range from $500 to $2,000 or more.

About the author

Jennifer Robert

Jennifer Robert

Jennifer Robert is a home design blogger with a passion for creating beautiful, functional spaces. She shares her tips and tricks on her blog, and she's always on the lookout for new trends and ideas.

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