Pump Flow Rate Formula:
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The pool pump flow rate calculation determines the required pump capacity in litres per hour based on pool volume and desired turnover time. Proper pump sizing is essential for efficient pool filtration and water circulation in South African conditions.
The calculator uses the fundamental pump sizing formula:
Where:
Explanation: This calculation ensures the pump can circulate the entire pool volume within the specified time frame for proper filtration.
Details: Correct pump sizing is crucial for energy efficiency, water clarity, chemical distribution, and overall pool health. Oversized pumps waste energy, while undersized pumps fail to properly filter the water.
Tips: Enter pool volume in litres and desired turnover time in hours. Typical turnover times range from 6-8 hours for residential pools. All values must be positive numbers.
Q1: What is the ideal turnover time for a pool?
A: For residential pools, 6-8 hours is typical. Commercial pools may require 4-6 hours. Longer times may be needed for heavily used pools.
Q2: How do I calculate my pool volume?
A: For rectangular pools: Length × Width × Average Depth × 1000. For circular pools: π × Radius² × Average Depth × 1000.
Q3: Why is pump sizing important in South Africa?
A: Due to high electricity costs and water conservation needs, properly sized pumps save energy and reduce water evaporation and chemical usage.
Q4: Should I consider other factors besides flow rate?
A: Yes, also consider total dynamic head (TDH), pipe size, filter type, and any water features when selecting a pump.
Q5: Can I use this calculator for saltwater pools?
A: Yes, the flow rate calculation is the same for both chlorine and saltwater pools.