Is your pool losing water faster than usual, or do you just have a hunch something isn’t quite right? Pools can lose water for various reasons—evaporation, splashing, or a genuine leak. Knowing how to tell if your pool has a leak is crucial for preventing more significant damage (and higher bills) down the line. At Coastal Pool Leaks and Repair, we specialize in finding and fixing pool leaks so you can keep swimming without worry. Below, we’ll outline the most common signs of a pool leak and what you can do about them.
1. Excessive Water Loss
Evaporation vs. Leak
It’s normal for pools to lose a small amount of water daily to evaporation—typically between ¼ to ½ an inch. If you find yourself adding more than a couple of inches per week, there’s a good chance you have a leak.
Quick Test:
- Bucket Test: Place a bucket on a pool step, fill it to the same water level as the pool, and mark both water lines. After 24 hours, compare how much water the bucket lost vs. the pool. If the pool’s water level drops more, a leak is likely.
2. Increased Chemical Usage
Harder Water Chemistry Maintenance
If you’re constantly balancing your pool’s pH, alkalinity, and chlorine levels, it could be a sign of water loss. When water leaks, you need to add more chemicals to maintain the correct balance.
Tip: Track your chemical usage month to month. A sudden spike in chemical purchases may be your first clue that something is amiss.
3. Soggy or Sunken Spots Around the Pool
Clues in the Landscaping
Leaking water often seeps into the surrounding soil. You may notice damp patches or sinkholes in your yard, especially near the pool deck or equipment pad. If the ground feels unusually soft or spongy, you could be dealing with a hidden leak.
4. Cracks or Gaps in the Pool Deck
Structural Damage
Concrete pool decks and coping can develop cracks for various reasons, but persistent or worsening cracks may indicate a leak. Pay attention to shifting pavers, separation between the deck and coping, or any unusual movement that could signal water is undermining the support structure.
5. Air or Bubbles in the Pump or Filter
Equipment-Related Red Flags
Check your pump or filter for excess air or bubbling in the strainer basket. If you see a steady stream of bubbles returning to the pool through the jets, it might indicate a suction-side leak in the plumbing or equipment lines.
6. Rising Utility Bills
Unexpected Cost Hikes
As water leaks from your pool, your automatic fill system (if you have one) works overtime to replace the lost water. This can lead to an unexpected jump in your water bill. Additionally, your pump may run longer to compensate for reduced water levels, increasing energy costs.
7. Pool Equipment Acting Strangely
Pump Surging or Loss of Prime
If your pump frequently loses its prime or experiences surging, it could be pulling in air from a leak in the suction line. Similarly, if you hear unusual gurgling or notice constant refilling, the culprit might be a leak in the plumbing or equipment.
What to Do If You Suspect a Leak
1. Perform the Bucket Test
This simple test will confirm if water loss goes beyond normal evaporation.
2. Visually Inspect Your Pool
Look for cracks, soggy spots, or bubbles in the return jets. Small details often point to big problems.
3. Contact a Professional
If you still suspect a leak after a few basic checks, it’s time to call in the experts. A professional leak detection service has specialized equipment—like pressure testing, dye tests, and electronic location tools—to pinpoint leaks quickly.
Why Choose Coastal Pool Leaks and Repair?
At Coastal Pool Leaks and Repair, we understand how stressful a potential pool leak can be. Our dedicated team offers:
- Accurate Leak Detection: We use advanced technology to locate even the smallest leaks.
- Expert Repairs: From cracked tiles to plumbing issues, our professionals can handle all aspects of pool leak repair.
- Preventative Maintenance: We’ll also provide tips and recommendations to help you avoid future leaks and keep your pool in top condition.
Keep Your Pool Watertight and Worry-Free
A pool leak may seem like a minor inconvenience, but ignoring it can lead to costly damage over time. Stay vigilant by monitoring your water levels, looking for visible signs of trouble, and scheduling regular maintenance checks. If you spot any red flags, don’t hesitate to take action.
Ready to dive back into a leak-free pool? Reach out to Coastal Pool Leaks and Repair today. We’re here to ensure your pool remains safe, efficient, and enjoyable all year long.


