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Evaporation Formula:
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Pool evaporation is the natural process where water turns from liquid to vapor and escapes from the pool surface. It's influenced by temperature, humidity, wind speed, and pool surface area.
The calculator uses the evaporation formula:
Where:
Explanation: The formula calculates daily water loss by converting surface area and evaporation rate into gallons using standard conversion factors.
Details: Accurate evaporation calculation helps pool owners maintain proper water levels, plan water refills, conserve water resources, and identify potential leaks by comparing calculated vs. actual water loss.
Tips: Enter pool surface area in square feet and evaporation rate in inches per day. Typical evaporation rates range from 0.1 to 0.25 inches per day depending on climate conditions.
Q1: What is a typical evaporation rate for pools?
A: In moderate climates, typical rates are 0.1-0.25 inches per day. Higher in hot, dry, windy conditions; lower in cool, humid conditions.
Q2: How can I measure my pool's evaporation rate?
A: Use a bucket test - place a bucket filled with pool water on pool steps, mark water levels, and measure the difference after 24 hours.
Q3: Does pool cover reduce evaporation?
A: Yes, pool covers can reduce evaporation by 90-95%, significantly conserving water and reducing heating costs.
Q4: When is evaporation highest?
A: Evaporation peaks during summer months, especially on hot, dry, windy days and when pool water is warmer than air temperature.
Q5: How to distinguish evaporation from leaks?
A: Compare calculated evaporation with actual water loss. If actual loss exceeds calculated evaporation by more than 1/4 inch daily, suspect a leak.