How Much Pool Water Loss Is Normal?
The short answer
Normal pool water loss from evaporation in Texas is about 1/8 to 1/4 inch per day, and more in extreme heat or wind. Losing significantly more than 1/4 inch per day, consistently, usually indicates a leak rather than evaporation. A bucket test separates evaporation from a true leak.
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What's normal in Texas
Evaporation depends on heat, wind, humidity, and sun exposure. In Texas summers, 1/4 inch per day is common, and a hot, windy day can push it higher.
What counts as a leak
If you're consistently losing well over 1/4 inch per day, or refilling far more than your neighbors, evaporation alone doesn't explain it.
Run the bucket test
The bucket test isolates evaporation from leakage:
- Both the pool and the bucket lose water to evaporation at the same rate.
- If the pool loses more than the bucket, the difference is your leak.