How to Pull a Deep Well Submersible Pump A Step-by-Step Guide

Pulling a deep well submersible pump can be a daunting task, especially if you have never done it before. Submersible pumps are designed to sit submerged in water at depths that can often exceed hundreds of feet. However, maintenance, troubleshooting, or replacement may require you to pull the pump from its depths. Here’s a detailed guide to help you safely and effectively pull a deep well submersible pump.

1. Prepare for the Task

Before getting started, gather the necessary tools and equipment. You’ll need

- A suitable hoisting system (e.g., a crane or lift) - Wrenches and pliers - A tape measure - A bucket - Safety gear (gloves, goggles, hard hat)

Ensure that you have access to the well head where the pump is located. Clear any debris or obstacles to create a safe working environment.

2. Understand the Pump System

Before you begin pulling the pump, it’s essential to understand the system. Familiarize yourself with the type of pump you have, including its depth, size, and weight. Most submersible pumps are connected to a drop pipe that runs from the pump to the surface. Know where the electrical connections are located, as you’ll need to disconnect these before proceeding.

3. Turn Off Power Supply

Disconnect the power supply to the pump. This step is critical to ensure your safety. Locate the circuit breaker that controls the pump and switch it off. If your pump is connected to a control box, make sure to disconnect any electrical cables. Using a lockout/tagout device can provide an additional safety measure to prevent accidental re-energization.

4. Remove the Well Cap

Once the power supply is disconnected, remove the well cap. This may involve unscrewing bolts or removing screws. Be cautious when lifting the cap as it can be heavy and awkward. Set it aside in a safe location to prevent any damage.

5. Unfasten the Discharge Head

The discharge head is where the water exits the pump and connects to the piping that leads to your home or irrigation system. Use the appropriate tools to unfasten the bolts or clamps holding the discharge head in place. Carefully lift the discharge head from the well casing, ensuring not to damage any components.

6. Prepare to Pull the Pump

Make sure your hoisting system is securely set up. Attach a sturdy rope or lifting strap to the pump. If the pump has a top connector or handle, use that to ensure a secure grip. Ensure that the lifting apparatus is suitable for the weight of the pump.

7. Lift the Pump

With the hoisting system prepared and the pump securely attached, begin to lift the pump slowly and carefully. Keep an eye out for any resistance. If you encounter any snags or pulling, stop and investigate. It’s possible that there could be a blockage, kink in the drop pipe, or other issues.

8. Clean and Inspect

Once the pump is fully removed from the well, take a moment to inspect it for damage, wear, or any signs of failure. Clean off any dirt or debris that may have accumulated. This step is crucial for understanding the condition of the pump and whether repairs are needed before re-installation.

9. Test the Pump

If you plan to use the same pump, conduct a function test to ensure it operates correctly. Check for performance discrepancies, such as unusual noises or inconsistent water output. If you notice any issues, consider repairing or replacing the pump.

10. Reinstalling or Replacing the Pump

When reinstalling the pump, reverse the steps outlined above. Ensure that all connections are secure and the power is reconnected in the correct order. If you are installing a new pump, follow the manufacturer's instructions carefully.

Conclusion

Pulling a deep well submersible pump is a challenging yet manageable task with the right preparation and knowledge. Always prioritize safety and ensure that you follow all necessary precautions during the process. By adhering to the steps outlined above, you can effectively pull and replace your deep well submersible pump with confidence.