Troubleshooting Submersible Pump Pressure Issues: What to Check?

Power Supply and Well Casing Inspection

To troubleshoot submersible pump pressure issues, start by inspecting the power supply to the pump. Check the voltage at the pump motor and compare it to the rated voltage specified by the manufacturer. If the voltage is low, it could be causing the pump to run inefficiently, leading to pressure issues. Next, inspect the well casing for any obstructions or blockages that could be restricting water flow to the pump. Check for any signs of damage or wear on the pump’s wiring or connections.

Pipe Connections and Blockages

Inspect the pipe connections between the well casing and the pump for any signs of damage, corrosion, or blockages. Use a pressure gauge to measure the pressure at the pump and compare it to the pressure at the well casing. If the pressure at the pump is significantly lower than the pressure at the well casing, it could indicate a blockage or restriction in the pipe connections. Use a pipe cleaning tool or a high-pressure water jet to clear any blockages and ensure proper water flow.

Pump Sizing and Performance

Finally, ensure the pump is properly sized for the well. A pump that is too small may not be able to handle the water demand, leading to pressure issues. Use a well yield test to determine the well’s actual water production rate and choose a pump that can handle that rate. Additionally, check the pump’s performance curve to ensure it is operating within its optimal range. If the pump is underperforming, it may not be able to maintain the required pressure.