Identifying Common Signs of a Leaking Swimming Pool

Aug 26, 2025By White River pools and design
White River pools and design

Introduction to Pool Leaks

Maintaining a swimming pool is a joy for many homeowners, offering a fun and relaxing retreat in their own backyard. However, managing a pool also comes with its challenges, one of which is identifying and addressing leaks. Recognizing the common signs of a leaking swimming pool can save you time, money, and prevent potential damage to your property.

swimming pool leak

Unusual Water Loss

One of the most apparent signs of a leaking pool is unexpected water loss. While some water loss due to evaporation is normal, losing more than 1/4 inch per day may indicate a problem. To test this, you can perform a simple bucket test:

  • Fill a bucket with water and place it on the pool step.
  • Mark the water level inside the bucket and the pool water level outside.
  • After 24 hours, compare the two levels. A significant drop in the pool water level compared to the bucket suggests a leak.

Wet Spots Around the Pool Area

Another indication of a leak is the presence of wet or soggy areas around the pool, particularly if they persist in dry weather. These patches may suggest that water is escaping from your pool into the surrounding ground.

wet grass around pool

Cracks or Damage to Pool Surfaces

Visible cracks or damage in the pool structure can be both a cause and an effect of leaks. Inspect the pool shell, tile, and grout lines for any visible signs of deterioration. Even minor cracks can lead to significant water loss over time.

Increased Water Bills

A sudden spike in your water bills could be another red flag. If your water usage has increased without any apparent reason, it might be time to investigate your pool for potential leaks. Monitoring your monthly bills can help you catch this early.

Decreased Chemical Levels

If maintaining balanced chemical levels has become more challenging, this might also point towards a leak. A leaking pool will require more frequent chemical adjustments as it loses treated water and refills with untreated water.

pool chemical test

Additional Signs to Watch For

Besides the more evident signs, there are other indicators that may suggest a leak, including:

  1. Noisy Pool Equipment: Air may enter through leaks, causing pumps to become noisy or malfunction.
  2. Algae Growth: Unexplained algae growth can occur due to chemical imbalances caused by water loss.
  3. Low Water Levels: Constantly low levels despite regular top-ups can signify a leak.

Conclusion

Identifying leaks early is crucial in maintaining a healthy swimming pool environment. Regular inspections and awareness of these common signs can help you address issues promptly and keep your pool in top condition. If you suspect a leak, it's advisable to consult with a professional who can provide an accurate diagnosis and solution.