Signs of a Pool Leak
Water level dropping more than ¼ inch per day, unexplained increases in your water bill, wet spots in the yard near pool plumbing, air bubbles in the return jets, or cracks in the pool deck can all indicate a leak.
The Bucket Test
Place a bucket on the pool steps, filled to match the pool water level. Mark both levels. After 24 hours, compare - if the pool level dropped more than the bucket, you likely have a leak. Run this test with the pump both on and off to narrow down whether the leak is in the plumbing or shell.
Pro Tip
Run the bucket test on a calm day without rain for the most accurate results.
Common Leak Locations
Most pool leaks occur at the skimmer, main drain, return fittings, light niches, or underground plumbing. Vinyl liner pools often leak at seams and fittings. Concrete pools may leak through cracks in the plaster.
Professional Leak Detection
Professional leak detection companies use pressure testing, electronic listening devices, dye testing, and sometimes cameras to pinpoint leaks precisely. Expect to pay $200-$500 for professional detection, which is worth it to avoid unnecessary digging.