Home
Back
Flow Rate Formula:
| From: | To: |
The Waterfall Pump Width Calculator helps determine the appropriate pump size (in gallons per hour) needed for a waterfall based on its width. Proper pump sizing ensures optimal water flow and aesthetic appeal for your water feature.
The calculator uses a simple formula:
Where:
Explanation: This calculation provides the minimum pump size needed to create a visually appealing waterfall with adequate water coverage across the entire width.
Details: Correct pump sizing is essential for creating an aesthetically pleasing waterfall effect. An undersized pump will result in inadequate water flow, while an oversized pump can cause splashing, energy waste, and potential damage to the system.
Tips: Measure the width of your waterfall spillway in inches. Enter this measurement into the calculator to determine the recommended pump flow rate in gallons per hour (GPH).
Q1: Is 100 GPH per inch a standard measurement?
A: Yes, this is a commonly used guideline for residential waterfall features, providing a good balance between visual appeal and water conservation.
Q2: Should I round up when selecting a pump?
A: It's generally recommended to round up to the nearest available pump size to ensure adequate flow, especially if your waterfall has multiple turns or elevation changes.
Q3: Does elevation affect pump sizing?
A: Yes, significant elevation changes between the pump and waterfall will reduce effective flow rate. For every foot of vertical rise, you may need to increase pump capacity by approximately 5-10%.
Q4: What about pipe length and diameter?
A: Longer pipe runs and smaller diameters create more friction loss, reducing effective flow rate. For long runs, consider increasing pipe diameter or selecting a more powerful pump.
Q5: Can I use this calculator for stream flows?
A: This calculator is specifically designed for waterfall flow rates. Stream calculations may require different formulas based on desired current speed and depth.