Is It Normal for a Pool to Lose 1/2 Inch of Water a Day? Understanding Pool Water Loss, Evaporation, and Leaks in College Station

Published on
June 1, 2025
pool water level

Is your pool losing water faster than you can refill it? Wondering if losing 1/2 inch of pool water a day is normal, or if you may have a leak? As College Station’s trusted experts in pool leak detection and repair, AquaVision Leak Detection is here to help you understand pool water loss, the difference between evaporation and leaks, and what steps you should take to protect your swimming pool investment. This article will answer your top questions, explain how much water loss is normal, and show how our team uses advanced Leaktronics equipment to pinpoint leaks quickly and accurately.

How Much Water Loss Is Normal in a Pool?

Losing some pool water every day is completely normal due to evaporation, splashing, and regular pool use. In College Station, especially during the hot Texas summers, pools typically lose between 1/8 and 1/4 inch of water per day from evaporation alone. However, losing as much as 1/2 inch of water a day may be on the higher side and could indicate a problem, especially if weather conditions are mild or you notice the loss is consistent regardless of temperature or wind.

What Factors Affect Pool Water Evaporation?

Evaporation is the primary reason your pool loses water daily. Several environmental factors can increase the evaporation rate, including:

  • Air temperature: Hotter days and cooler nights speed up evaporation.
  • Humidity: Drier air pulls more moisture from your pool; high humidity slows evaporation.
  • Wind: Windy conditions accelerate water loss by moving moist air away from the pool surface.
  • Sun exposure: Pools in full sun evaporate faster than shaded pools.
  • Surface area: Larger pools lose more water due to their greater surface area.

If your pool is exposed to the sun all day, has little shade or wind protection, or you run water features often, you may see higher evaporation rates.

How Much Water Evaporates from a Pool Each Day?

On average, a pool in College Station can lose about 1/4 inch of water each day to evaporation during the summer. In extreme heat, this can increase to 1/2 inch per day, especially if the pool is uncovered, the air is dry, and there’s constant wind. For a standard backyard pool, this could add up to hundreds of gallons of water lost each week. The average amount of water evaporation during the summer is approximately half of an inch loss per day. Multiplied by seven days, that's 3.5 inches per week.

When Should You Suspect a Pool Leak?

While some water loss is expected, losing more than 1/2 inch of pool water per day is often a red flag. If you notice your pool is losing water at this rate consistently, even when the weather is cooler or less windy, you may have a pool leak. Other signs include:

  • Wet spots or puddles around the pool deck
  • Air bubbles in the return jets
  • Needing to add water more frequently than usual
  • Unexplained algae growth in certain areas
  • A sudden spike in your water bill

If you notice any of these issues, it’s time to call a leak detection specialist.

What Are the Most Common Causes of Pool Leaks?

Pool leaks can happen for many reasons, including:

  • Plumbing leaks: Underground pipes, pump seals, or fittings can develop leaks over time.
  • Structural leaks: Cracks in the pool shell, tears in a vinyl liner, or broken skimmer seals can allow water to escape.
  • Equipment leaks: Problems with the pool pump, filter, or backwash line can lead to water loss.
  • Fittings and drains: Leaks around lights, main drains, or return fittings are common trouble spots.

How Can You Tell If Your Pool Is Losing Water Due to Evaporation or a Leak?

It can be tricky to determine if your pool water loss is due to normal evaporation or a leak. The key is to compare how much water evaporates from your pool versus how much is actually lost. If your pool loses significantly more water than expected for your local weather and pool conditions, it’s time to investigate further.

What Is the Bucket Test and How Does It Work?

The bucket test is a simple way to check if your pool is losing water due to evaporation or a leak:

  1. Fill a bucket with pool water and place it on a pool step so the water level inside matches the pool’s water level.
  2. Mark the water levels inside the bucket and on the pool wall.
  3. Turn off the pool pump and let the pool sit for 24 hours.
  4. After 24 hours, compare the water loss in the bucket to the pool.
  • If both drop the same amount, the loss is likely due to evaporation.
  • If the pool water drops more than the bucket, you may have a leak.

Why Is Fast Leak Detection Important for Pool Owners?

Ignoring a pool leak can lead to much bigger problems, such as:

  • Higher water bills
  • Damage to your pool’s structure or surrounding deck
  • Soil erosion around the pool
  • Equipment damage if the water level drops below the skimmer

Early leak detection saves money and protects your investment. That’s why AquaVision Leak Detection uses Leaktronics’ industry-leading leak detection equipment to find leaks quickly and non-invasively, preventing unnecessary repairs and water waste.

How Does AquaVision Detect Pool Leaks in College Station?

At AquaVision Leak Detection, we combine years of experience with the latest Leaktronics technology to provide the most accurate leak detection in College Station. Our certified team uses advanced electronic listening devices, pressure testing, and dye tests to pinpoint the exact source of the leak—whether it’s in your pool shell, plumbing, or equipment—without damaging your pool or yard. We offer comprehensive inspections and non-invasive repairs so you can get back to enjoying your pool faster.

What Should You Do If You Suspect a Leak in Your Pool?

If you think your pool is losing too much water, don’t wait. Here’s what you should do:

  • Perform the bucket test to check for a leak.
  • Inspect for visible cracks, wet spots, or unusual algae growth.
  • Call AquaVision Leak Detection for a professional inspection and leak detection service.

Our team will help you determine if your water loss is normal or if you need repairs. We’re committed to keeping College Station pools healthy, efficient, and leak-free.

Key Takeaways

  • Losing up to 1/4 inch of water per day is normal for pools in College Station; 1/2 inch per day may be excessive and could indicate a leak.
  • Evaporation rates increase with heat, wind, sun exposure, and low humidity.
  • Use the bucket test to help determine if your pool water loss is due to evaporation or a leak.
  • Common causes of leaks include plumbing, structural cracks, fittings, and equipment issues.
  • Early leak detection prevents costly damage and water waste.
  • AquaVision Leak Detection uses Leaktronics equipment for fast, non-invasive leak detection in College Station.
  • If you suspect a leak, contact us for expert pool leak detection and repair—your pool’s health and your peace of mind are our top priorities!

Need help with pool water loss or leak detection in College Station? Contact AquaVision Leak Detection—your local experts in pool care and repair!

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AquaVision Leak Detection LLC
Michael Gally
Pool Expert, AquaVision Leak Detection LLC
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