Symptoms
- Level dropping more than about a quarter inch per day
- Loss continuing overnight at the same pace
- Hose or autofill running far beyond the summer pattern
- Salt and stabilizer diluting faster than dosing explains
- Wet soil or settling pavers near the shell
The bucket test deserves its reputation because it converts an argument about feelings into arithmetic within one day. Owners are often surprised by both possible answers: sometimes the pool is innocent and summer evaporation was the whole story, and sometimes the level falls so decisively that the only surprise is how long the leak went unmeasured. Either answer is progress, because repair money spent after measurement lands on a named fault. Mark the starting level on the tile with painter’s tape before any test; memory negotiates, tape does not. The same tape trick, repeated after a repair, turns the first week of doubt into a measured verdict that either closes the case or reopens it with evidence.
Common Causes
| Cause | How likely | What a homeowner can check |
|---|---|---|
| Fitting seals at skimmer, returns or light niche | Very common | Note whether the loss slows at one particular level |
| Underground plumbing joint failure | Common | Look for lush grass or damp soil along pipe runs |
| Equipment pad leaks | Very common | Inspect every joint and seal with the system running |
Questions and Answers
How much evaporation is normal in Cape Coral?
Around a quarter inch a day in hot or windy weather is common, sometimes more. The bucket test compares the pool against evaporation over one day, which removes the guessing.
Can a leak damage the deck?
Yes. Escaping water carries sandy soil with it, and voids under pavers and deck slabs show up as settling and hollow sounds.
Does the water bill reveal a leak?
Often. Makeup water runs around the clock on a leaking pool, so a rising bill with no change in household use is a classic first clue.