Service
Vinyl liner leak detection
Vinyl liner pools leak differently from gunite. The liner itself is the waterproofing, so a failure in it is a direct loss, and it is often invisible until you look for it deliberately. We work on liner pools throughout our Florida service areas.
How a liner is checked
Dye testing at suspected points, worked methodically across seams, the bead track, and every fitting penetration. A liner tear is usually small and rarely where the owner expects it.
Fittings deserve particular attention. The point where a return, skimmer, light or step bolt passes through vinyl is a manufactured weakness, and it fails far more often than the sheet does.
The pool stays full for this. A liner leak is found by watching where dye is drawn in while there is water above it to draw it, so draining the pool removes the evidence rather than exposing it — and a drained liner pool can shift or shrink, which creates its own problems.
It is also worth establishing early whether the liner is the problem at all. A liner pool has the same buried plumbing as any other, so the question is not only where the liner failed but whether it failed. Testing the lines separately answers that before anyone starts inspecting vinyl inch by inch.
Where liners fail
- Fitting penetrations
- Returns, skimmer, lights, steps. Any hole cut in the liner during installation.
- Bead track
- Where the liner is held at the top of the wall. Separation here loses water at the level it separates.
- Seams
- Factory-welded joins can open, particularly on older liners.
- Punctures and tears
- Usually small, often in the floor, frequently caused by something dropped.
- Behind the liner
- A pool losing water through the plumbing behind an intact liner presents identically from the surface. Worth ruling out before a liner is blamed.
Tell us what it's doing.
Describe what you are seeing and we will tell you what it sounds like and what a visit would involve. If it is dropping fast, call. You will reach a three-person, owner-led team.
Questions people ask
Can a liner tear be patched, or does the liner need replacing?
Many tears patch successfully, particularly away from seams and fittings. Age and condition of the vinyl decide it. An old, brittle liner may not take a patch, and we will say so.
My liner looks fine. Can it still be leaking?
Yes. Fitting failures and bead-track separation are not obvious to look at, and a floor puncture can be very hard to see. That is what dye testing is for.
Could it be the plumbing rather than the liner?
It could, and that is worth establishing before anyone quotes you for a liner. The lines are tested the same way as on any other pool.
Do you have to drain the pool to find a liner leak?
No, and draining works against the search. The method depends on water being present to draw dye toward the failure, so an empty pool hides the thing we are looking for.
Do other companies avoid vinyl liner work?
Some do. Liner work is slower and more methodical than testing plumbing, so it is not every company's preference. It is work we take on.