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GPM and Depth: A 2-3 sentence summary --- Understanding the Relationship Between GPM and Depth
When it comes to a deep well submersible pump, the relationship between gallons per minute (GPM) and depth is crucial for optimal performance. Increasing the depth of the pump requires a more powerful motor to overcome the increased head pressure, which can also result in higher energy consumption. This means that as the depth increases, the GPM may decrease to maintain a stable flow rate.
Selecting the Right Pump for Your Needs
When selecting a deep well submersible pump, it’s essential to consider the well’s depth and the required GPM. A general rule of thumb is to increase the pump’s horsepower by 1-2% for every 100 feet of additional depth. For example, a 2 horsepower pump might be sufficient for a 200-foot well, but a 2.5-3 horsepower pump would be more suitable for a 300-foot well.
Calculating the Optimal Pump Size
To calculate the optimal pump size, use the formula: GPM = (Well Depth x 0.000016) + (Static Water Level x 0.000016). For instance, for a 300-foot well with a static water level of 200 feet, the GPM would be approximately 6.4. In this case, a 6-8 GPM pump would be a suitable choice, taking into account the increased head pressure and energy consumption.
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