How to Detect and Fix Pool Leaks: Causes, Testing Methods, and Repair Solutions for Concrete and Gunite Pools
Owning a swimming pool is one of the best ways to enjoy sunny San Antonio days—but nothing spoils the fun faster than discovering your pool is losing water. A leaking pool can waste thousands of gallons a year, raise your water bills, and even damage the structure if left untreated. Understanding how to detect and fix pool leaks can save you time, money, and frustration.
1. Recognizing the Signs of a Pool Leak
Not all water loss means a leak—sometimes, it’s just evaporation. However, if you’re refilling your pool more than once a week, or notice soggy spots in your yard, cracks around the deck, or air bubbles in your pump system, chances are there’s a leak. Acting fast is key because even small leaks can worsen quickly, leading to costly repairs.
2. Common Causes of Pool Leaks
Concrete and gunite pools are built to last, but they’re not immune to wear and tear. Over time, ground movement, temperature changes, and normal aging can cause cracks in the pool shell or plumbing lines. Worn-out fittings, damaged skimmers, or faulty return lines can also contribute to leaks. Identifying the root cause early helps prevent further damage to your pool’s structure and equipment.
3. How Professionals Detect Pool Leaks
Professional pool technicians use advanced leak detection technology to pinpoint the exact source without unnecessary digging or draining. Methods like pressure testing, dye testing, and electronic listening devices allow experts to locate even the smallest leaks. At Budnik Pools, our swimming pool service in San Antonio includes precise leak detection to save you time and ensure a permanent fix.
4. Testing Your Pool for Leaks at Home
If you suspect a leak, try the “bucket test.” Fill a bucket with pool water, place it on a pool step, and mark the water level inside and outside the bucket. After 24 hours, if the pool’s water level drops more than the bucket’s, you likely have a leak. While this method helps confirm your suspicions, a professional assessment is still recommended to find the exact location.
5. Repairing Small Pool Leaks Without Draining
Good news—many small leaks can be repaired without draining your pool. Epoxy putty, underwater sealants, or patching compounds are often used to seal cracks or small holes directly underwater. This saves both time and water while ensuring a reliable repair. For larger structural issues, professional resurfacing or plumbing repairs may be needed.
6. How Long Does Pool Leak Repair Take?
The repair timeline depends on the severity and location of the leak. Minor patch jobs can be done in a few hours, while complex underground plumbing leaks might take a couple of days. At Budnik Pools, we aim to complete most repairs quickly and efficiently, minimizing disruption to your swim schedule.
7. Preventing Future Pool Leaks
Regular pool maintenance is the best defense against future leaks. Routine inspections, keeping chemical levels balanced, and checking equipment seals can extend your pool’s lifespan. Our pool maintenance and cleaning services in San Antonio help you stay ahead of potential issues—keeping your pool sparkling, safe, and leak-free year-round.