Choosing the Right Submersible Bore Well Pump for a 750 Ft Lift

Introduction

Selecting the appropriate submersible bore well pump for a 750 feet vertical lift is crucial for efficient water extraction. This guide will help you understand the key factors to consider, including total dynamic head (TDH) and desired flow rate, to ensure you choose the right pump.

Key Factors to Consider

Total Dynamic Head (TDH)

The total dynamic head (TDH) is the sum of the vertical lift and any friction losses in the piping. For a 750 feet vertical lift, the TDH will be approximately 750 feet. Assuming minimal friction losses, a good rule of thumb is to select a pump with a head rating 20-30% higher than the actual required lift.

Desired Flow Rate or Water Demand

The desired flow rate will depend on the water demand. For domestic or household use from a 750-foot well, a common flow rate range is typically 5-10 gallons per minute (gpm). Therefore, a suitable submersible bore well pump should have a capacity of 7-13 gpm with a TDH rating of at least 750 feet.

Motor Capacity

Based on the flow rate and head requirements, specific pump models would typically have motors with a rating of 0.75 to 1.5 horsepower. However, the exact pump selection should also factor in the water demand, piping diameter, and other system details.

Factors Influencing Pump Selection

While the recommended capacity and head rating should guide your choice, there are other variables to consider. These include:

Water Demand: Understanding the household or industrial water consumption will help determine the necessary flow rate. Pipe Diameter: The size of the piping can affect the performance of the pump and may require adjustments in the selection process. System Configuration: Including the presence of valves and the length and material of the piping can influence the overall performance and energy efficiency of the pump.

Expert Guidance

Working with an experienced well driller or pump specialist is highly recommended. They can provide tailored advice based on the unique requirements of your well and system.

Conclusion

Selecting the right submersible bore well pump for a 750 feet lift is a critical task that requires careful consideration of several factors. By understanding the total dynamic head, desired flow rate, and other system details, you can ensure the pump you choose is the best fit for your needs. Consulting with an expert is always a good idea to ensure you get the most efficient and effective water extraction solution.