8 Best Practices for maximizing the lifespan of Submersible Well Pumps

Best practices for submersible pump maintenance

Here are the 8 best practices to increase submersible well pumps efficiency and lifespan.

• Prevent Dry Run Situations:

Protect submersible pumps by installing well-level monitoring systems or low water level cutoff switches. These mechanisms detect low water levels and automatically shut off the pump. Thus, this prevents dry run situations. Avoiding dry runs ensures the pump remains lubricated and cooled.

• Inspect the motor: 

Examine the motor’s exterior for any physical damage or signs of moisture ingress. Additionally, monitor the motor’s temperature during operation to ensure it stays within the recommended range. During the inspection, check for any loose or damaged wiring connections, signs of corrosion, or unusual noises coming from the motor. If you find any unwanted noise, stop operating the pump and schedule a quick service and repair.

• Ensure there is no overheating: 

Although the pump is submerged in the water, it may overheat. Therefore, make it a part of the submersible pump maintenance plan. Excessive heat can cause damage to the motor and other components, leading to pump failure. To prevent overheating, ensure proper ventilation around the pump motor, allowing for adequate airflow. Monitor the motor’s temperature regularly during operation and address any signs of overheating promptly.

• Replace seals and hose when required: 

Over time, seals and hoses made of silicon or rubber may deteriorate, become worn, or develop cracks. This compromises their ability to create a watertight seal. It can also result in water leakage, reduced pump efficiency, and potential damage to surrounding components. To prevent these issues, regularly check the condition of seals and hoses and replace them when necessary. 

• Operate the pump at BEP: 

The BEP represents the ideal operating point where the pump achieves its highest efficiency while delivering the desired flow rate and pressure. Operating a submersible well pump below the BEP may cause cavitation, while operating above the BEP can lead to excessive strain on the motor and components. To ensure optimal performance, adjust the pump’s operating conditions, such as speed or impeller size, to align with the BEP.

• Use coatings on the pumps: 

Applying coatings to submersible pumps can provide an additional layer of protection against various environmental factors and extend their lifespan. Coatings, such as corrosion-resistant coatings, help safeguard the pump against corrosion, abrasion, and chemical damage. These coatings create a barrier that shields the pump’s surfaces from the corrosive effects of water or chemicals.

• Voltage Stabilization:

Protect submersible pumps from voltage fluctuations by installing stabilizers or surge protectors. Stable and consistent power supply prevents electrical stress and potential damage to the motor or other electrical components. Voltage stabilization enhances the longevity of the pump.

• Conduct professional inspection: 

A routine professional inspection is important apart from your own maintenance. Consider qualified professionals or manufacturer-approved service centers for major repairs, modifications, or troubleshooting. Attempting to fix complex issues without expertise may make warranties invalid and further damage the pump.