Submersible well pumps are indispensable in ensuring a consistent water supply from underground sources, especially in areas where surface water is scarce. However, like any mechanical device, they are prone to certain problems that can disrupt their functioning. Understanding these issues and knowing how to address them is crucial for anyone relying on these pumps. This article explores common submersible well pump problems and provides expert insights into troubleshooting and preventive measures to ensure longevity and optimal performance.

One of the most prevalent issues with submersible well pumps is the presence of airlock. Airlocks occur when air is trapped within the pump's casing or piping. This can significantly reduce the pump's efficiency, leading to inadequate water supply or complete malfunction. To address this, the system needs to be properly vented to allow trapped air to escape. It's essential to regularly check the pump for signs of airlock, especially after installation or maintenance work, when the likelihood of air introduction is high.
Another common problem is the pump's inability to deliver water, which often points to electrical issues. Faulty wiring, tripped circuit breakers, or a failed motor can halt pump operation. Conducting a thorough inspection of the electrical components is key. It’s advisable to ensure that all wiring connections are secure and that the pump has the correct voltage. In situations where the motor has burned out, replacement by a certified technician is generally warranted to avoid exacerbating the issue.

Submersible pumps can also suffer from mechanical wear and tear. Over time, sand, silt, and other particulates can cause wear on the impellers and other moving parts. This is particularly true in areas where water quality is poor. Regular maintenance, including flushing out sediment and debris from the system, can help mitigate these effects. Installing a filtration system can further prevent particulates from entering the pump, thus extending its lifespan.
Over-pumping is another issue often faced. This happens when the water is drawn faster than the well can replenish, leading to dry running. Dry running can cause significant damage to the pump due to the loss of cooling water, leading to overheating and potential component failure. Using a pump controller with a low water cut-off switch can prevent over-pumping, as it will shut down the pump when water levels fall below a certain threshold.
submersible well pump problems
Blockages and clogs within the pump or in the pipeline can also lead to interrupted water flow. This is usually caused by debris or build-up of minerals that restrict the movement of water. Regular inspections and cleaning of the pump and associated pipelines are essential preventive measures. If mineral build-up is severe, chemical treatments or professional cleaning might be necessary to restore normal water flow.
One issue that can often be overlooked is corrosion, particularly in metallic components of the pump exposed to aggressive water conditions. Corrosion can weaken these parts, eventually leading to leaks or breaks. The use of corrosion-resistant materials during installation and regular checks for signs of corrosion can prevent unexpected failures.
Seeking a professional's expertise is invaluable when dealing with complex problems beyond basic troubleshooting. Regular inspections by qualified technicians can identify potential problems before they escalate, ensuring that corrective measures are promptly applied. This not only extends the life of the pump but also ensures a reliable water supply.
Submersible well pump problems, while varied, can often be mitigated with regular maintenance, proper installation, and timely intervention when issues arise. By understanding the common sources of these problems and implementing preventive strategies, users can ensure the efficient and effective operation of their submersible well pumps. Maintaining familiarity with the manufacturer's guidelines and engaging with professional services when necessary will underpin a robust and lasting pumping solution, reinforcing both trust and authority in submersible well pump usage.