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How to Change Submersible Well Pump?

Views: 0     Author: Site Editor     Publish Time: 2025-03-31      Origin: Site

If your water pressure has dropped, your water supply seems inconsistent, or your pump has stopped working entirely, it may be time to replace your submersible well pump. Though it sounds like a significant task, the process is manageable with the right tools, preparation, and a step-by-step guide. Below, we'll walk you through everything you need to know about how to change a submersible well pump safely and effectively.  


By following these instructions, you can save money on professional services and ensure your well system is up and running in no time.  



 

What is a Submersible Well Pump?  

A submersible well pump is a water pump placed deep inside your well (sometimes hundreds of feet below the ground) to push water to the surface. Unlike above-ground pumps, which pull water upward, a submersible pump operates while fully submerged underwater.  


These pumps are highly efficient for residential homes and agricultural setups because they leverage underground pressure to help deliver water. However, over time, wear and tear may lead to decreased efficiency or complete failure, requiring a replacement.  


submersible well pump



 

Tools and Materials You'll Need  

Before starting the replacement process, gather the following tools and supplies to ensure a smooth experience:  


Tools

● Pipe wrenches  

● Adjustable crescent wrenches  

● A high-quality safety harness  

● PVC pipe cutter or hacksaw  

● Multimeter (for electrical testing)  

● Pliers  

● Heavy-duty gloves 

 

Materials  

● New submersible well pump (ensuring compatibility with your well system)  

● Electrical tape  

● Heat-shrink tubing or waterproof connectors  

● Rope or well pump hoist system (to lift the pump)  

● Pipe sealant or Teflon tape  



 

7-Step Guide to Changing a Submersible Well Pump  

Follow these step-by-step instructions to replace your submersible well pump safely and efficiently.  


1. Turn Off the Power

Safety comes first. Begin by shutting off the power to your well pump at the main circuit breaker. Use a multimeter to test the pump’s wires and confirm that no electrical current remains active.  


2. Access the Wellhead  

Carefully remove the well cap, which is typically bolted or screwed into place. Be prepared to encounter well piping and wiring immediately inside the wellhead. Keep the work area as clean as possible to prevent debris from falling into the well.  


3. Extract the Pump  

Use a well pump hoist or a sturdy rope to gradually pull the pump and piping from the well. This step requires patience and caution, as submersible pumps are often located deep underground.  


● Slowly bring up the pump while ensuring no sharp edges damage the wiring or the pipe.  

● Inspect the condition of the pipe and wiring as you lift it, looking for cracks or wear.  


4. Dispose of the Old Pump  

Once the pump is fully above ground, disconnect it from the piping and wiring. Safely dispose of the old pump in accordance with your local recycling or disposal guidelines.  


5. Prepare the New Pump  

Prepare the replacement pump by attaching the necessary fittings and connecting the electrical wires.  


● Use waterproof connectors or heat-shrink tubing to secure the electrical connections.  

● Wrap Teflon tape or apply pipe sealant to all threaded fittings to prevent leaks.  

● Double-check that the pump matches the voltage and pumping capacity of your old unit.  


6. Reinstall the Pump  

Carefully lower the new pump into the well using a hoist system or rope. Ensure smooth placement to avoid damaging the pipe or electrical components.  


● Feed the piping and wiring back into the well slowly and steadily.  

● Reattach the wiring inside the wellhead according to manufacturer instructions.  


7. Restore Power and Test the System  

Once the pump is securely installed, restore power at the circuit breaker. Monitor the system to ensure steady water flow and confirm that the pump is operating properly.  

If everything checks out, reattach the well cap to prevent debris from entering. Congratulations! You’ve successfully replaced your submersible well pump.  



 

Tips for a Successful Replacement  

Safety First  

Always wear gloves, safety goggles, and secure a safety harness when handling deep wells to prevent injury.  


Know When to Seek Help  

While replacing a submersible well pump is doable, it requires precision and patience. If you encounter challenges beyond your expertise, don’t hesitate to call a professional.  


Regular Maintenance  

To extend the life of your new pump, schedule routine inspections and clean the well system regularly to prevent clogs or early wear and tear.  


How to Change Submersible Well Pump



 

Final Thoughts  

Replacing your submersible well pump may feel intimidating at first, but with preparation, the right tools, and this guide, you can handle the task confidently. From ensuring the power is off to carefully lowering the new pump back into your well, following these steps will get your water system flowing smoothly again.  


If this guide was helpful, share it or comment below with your experience!  

How to Change Submersible Well Pump

Submersible Well Pump

Submersible Pump

Guangdong Ruirong Pump Industry Co., Ltd. specializes in the production of stainless steel submersible motors and submersible pumps for wells. 

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