Installing a Submersible Pump


Read your manual for installation, operation, and safety information. This guide neither supplements nor replaces the Owner’s Manual.

How to Install a Well Water Submersible Pump
When your submersible well pump goes out and you suddenly have no water, you realize how much your life depends on the liquid. Whether you have a deep or shallow well, you need certain tools and knowledge to replace a submersible pump. Assuming you have already pulled the old pump out of the well, here is how to install your new submersible pump to get your household back up and running again.

Cost (0-5 scale): 4
Difficulty (0-5 scale): 5

Items Needed:
• Wrench
• Winch and derrick (if required)
• Submersible pump assembly
• Cup of bleach

Step One – Purchase replacement pump
If possible, replace your submersible pump with the exact same model as the old one to ensure compatibility with the rest of your system. To make sure you get exactly what you need, take photographs of the existing pump, pressure tank, and control box (if present), especially the old pump nameplate. With help from the sales clerk and the photographs, you can match the replacement pump to the original model, or at least find a comparable model of the same size and with the same pump performance. If it is a 3 wire pump you need to replace the control box. Replace the wire if it is not in serviceable condition.
Ensure the new replacement pump has sufficient power for your needs. A typical 3 to 4 bedroom home requires 8-12 GPM (gallons per minute). For deeper wells, higher-powered pumps will be necessary to achieve the appropriate flow rate. Proper flow rate is indicated by the GPM rating on the pump.
To ensure peace of mind for years to come, purchase a pump made with the finest materials and is backed by a strong warranty.

Step Two – Assemble components and pretest pump
To install the new pump you may have to splice the electric wires together in a waterproof connection. Consult an electrician or well contractor to specify the power wire splice connector type and technique acceptable for well applications. Connect the pipe fittings and pipe clamps as directed in the pump installation instructions. Tape the wires to the pipe about every 2' for the entire length for ease in reinstallation of pump into casing. Turn the power to the pump on momentarily to confirm it is working before inserting assembly into well. Turn the power off and prepare to insert the pump back into the well, again using 2 people. One person is at the well opening lowering the pump down and the other person close by, feeding the slack to you and to help hold back to prevent the pump from dropping quickly down the casing.

Step Three – Sanitize well and reinstall pump
Dump a cup of bleach down the well. Slowly lower the submersible pump down the well casing, taking care to ensure wire and pipe do not snag on the top of the well casing.
As the tee-handle pump removal tool enters the well casing, lower it until the tape nears the top of the casing. Engage the pitless adapter components securely. Turn the tee-handle counterclockwise to disconnect the tool from the pitless adapter. Withdraw the tool from the casing. Review the pump’s installation instructions to ensure you have completed every step.
Feed the electrical wires through the well cap and secure the cap to the top of the casing. Make any final above-ground connections. Your submersible pump is now ready to go into service.

Hiring a pump installer

Don’t Be Afraid To Ask Questions
One of the most important questions you can ask is about their experience. You want to know how long they have been in business and how knowledgeable they are. Ask for references. The more experienced and better the company is, the more expensive their services may be. Remember that each problem you may have with your well water system is going to cost you money, not only for the parts to fix it but also for the labor required. Having the job done right the first time will be worth the higher expense.

Ask what types of installation equipment they use to make sure that the job is done quickly and with minimal landscape damage. Ask what equipment they will install and how long the warranty is to insure they will use high quality, long lasting parts.

Local Codes and Regulations
Make sure your installer abides by local codes and regulations regarding private water systems and obtains all necessary applications, permits, and inspections.