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Understanding Pool Water Loss: Is It a Leak or Just Evaporation

If you’re a pool owner in New England, you might have noticed your pool water levels decreasing. Here’s a useful rule of thumb: if your pool is losing more than a quarter inch of water per day, there’s a good chance you might have a leak. In this region, typical evaporation rates range from 1/8” to 1/4” per day, with exceptions based on various factors.

Factors like cool and dry air during pool heating, especially in the fall when nighttime temperatures drop, can increase evaporation rates. Additionally, windy conditions and pools with water features like vanishing edges, spillovers, and waterfalls tend to experience higher evaporation. Pools with negative or vanishing edges are known for their exceptionally high evaporation rates.

If you suspect a leak, a simple diagnostic step is to turn off water features and monitor the water level for a few days. If the loss stops, it’s likely excess evaporation caused by the feature. If the loss persists, a leak is probable. To rule out evaporation, consider conducting a “bucket test.”

The bucket test involves filling a bucket halfway with pool water, placing it in the pool (secure it with a rock or bungee cord), and marking water levels inside and outside the bucket. After 12 to 24 hours without pool use, compare the levels. If the loss inside and outside the bucket is the same, it’s likely evaporation. If the loss outside the bucket is greater, a leak is probable.

By understanding the factors influencing water loss and performing simple tests like the bucket test, pool owners can distinguish between normal evaporation and potential leaks, ensuring timely and effective maintenance.

If your bucket test indicates a leak, reach out to Seacoast Water Services—a trusted name in leak detection. We can swiftly identify and address leaks, ensuring your pool stays in optimal condition. Prompt action is crucial to prevent water and financial losses. For effective solutions, contact Seacoast Water Services and enjoy a worry-free leak detection experience.

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