The submersible pumps market is expected to reach USD 15.5 billion by 2025. Submersible well pumps are essential components of water supply systems, responsible for extracting water from underground sources such as wells or boreholes. With an increase in its use, like any mechanical device, submersible well pumps require proper care and attention to maximize their lifespan and ensure long-term efficiency.  

Submersible well pump maintenance involves a range of activities that should be performed regularly to identify and address potential issues before they escalate. Here, we will explore eight best practices that can help you prolong the lifespan of submersible well pumps. If you are looking to buy submersible pumps, do check out our website. 

Submersible slurry pumps

Submersible slurry pumps

Why is submersible well pump maintenance needed?

A submersible well pump functions by being submerged in the water source, using an electric motor to drive one or more impellers. The rotating impeller(s) draws water into the pump through the intake and forcefully discharges it through the outlet, creating a continuous flow. This design eliminates the need for priming and allows for efficient operation. 

It is important to know that despite being durable, these pumps require attention to perform well. Regular maintenance ensures a smooth work process for these pumps. 

The reasons why submersible pumps need maintenance are:

  • Ensuring efficient performance
  • Minimizing potential failures
  • Preventing premature wear and tear

Generally, high-quality submersible pumps often require less maintenance than others. 

Submersible pump deployment

Submersible pump deployment

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. 

Submersible pump design

Submersible Pump Design

Why choose EDDY Pump? 

EDDY Pump offers superior performance pumps especially when dealing with abrasive and challenging materials. The design of these pumps ensure low maintenance, more uptime, and better results. EDDY Pump provides reliable solutions for a wide range of industries and applications. With a history of satisfied customers, choosing EDDY Pump provides assurance of a trusted and proven pumping solution.

Key takeaways

Simply put, regular submersible pump maintenance ensures the machines’ longevity, better efficiency, and a stress-free experience.  By implementing these eight best practices for submersible well pump maintenance, you can optimize their performance, increase their lifespan, and minimize the need for repairs or replacements. EDDY Pump has a wide array of quality pumps to suit your pumping job perfectly.

For your slurry pump, dredging equipment application in construction, mining, chemical, oil & gas, pulp and paper, sewage treatment, and marine industries, email EDDY Pump or call us at 619-558-3250. To request a free sales quote connect with us today.

Frequently asked questions about submersible pumps maintenance 

1. How often should a submersible pump be serviced?

The frequency of servicing a submersible pump largely depends on a few factors. These factors include flow rate, presence of solids, and the condition of the well. It is ideal to get it serviced thrice a year. However, regular inspection is a must. If any damage is found or you notice any worn out part, repair it at the earliest. 

2. Is it OK to run a submersible pump for 24 hours?

Submersible pumps are generally designed for continuous operation, making it acceptable to run them for 24 hours. Check the pump’s specifications to ensure it is suitable for continuous use. Keep the pump submerged in water for cooling, consider power consumption, and perform regular maintenance. Following these guidelines will help maintain optimal performance and longevity.

3. Can a submersible pump run dry?

No, it should never run dry. These pumps are specifically designed to operate while submerged in water, and running them without sufficient water can cause damage. The water surrounding the pump helps cool the motor and lubricate the internal components. Running a submersible pump without water can lead to overheating, excessive wear and tear, and potentially result in the pump’s failure.

4. Does a submersible pump need earthing?

Yes, it is recommended that all well pumps, including submersible pumps, should have a ground wire. Earthing is an important safety measure to protect against electrical hazards and ensure the safe operation of electrical equipment. It helps prevent the buildup of electric charges and reduces the risk of electric shock. It diverts electrical faults away from the pump and surrounding areas.