Do the bucket test first. Fill a bucket with pool water, stand it on a step so the levels match, and compare the drop over 24 hours.
Equal loss is evaporation. A bigger drop in the pool is a leak. Full service list at Leak Detection Johannesburg.
Send your bucket test result and roughly how much water you lose a week.
Get a Pool Leak QuoteShell or Pipework
Where the level stops dropping tells you a great deal. Stops at the skimmer: the skimmer or its throat. Stops at a light or a return: that fitting. Keeps dropping to the floor: the shell or the main drain line. Drops faster with the pump running: a pressure-side pipe leak.
How Pool Leaks Are Found
- Pressure testing each line separately to prove which circuit fails.
- Electronic shell scanning, which passes a current through the water to find breaches in the lining.
- Dye testing at fittings, cracks and the skimmer throat.
- Acoustic listening on buried pool pipework under paving.
Pool Leak Detection Prices in Johannesburg
| Job | Indicative range | What moves it |
|---|---|---|
| Pool leak detection | R1,450 – R2,800 | Includes call-out and first hour. |
| Full pressure test, all lines | R1,800 – R3,800 | Suction, return and cleaner lines. |
| Electronic shell scan | R2,200 – R4,500 | Fibreglass and marbelite linings. |
| Detection and repair combined | R6,500 – R13,500+ | Typical Johannesburg range. |
| Skimmer or fitting repair | R1,800 – R5,500 | Depending on access. |
| Underground pool pipe repair | R2,500 – R8,500 | Plus paving reinstatement. |
| Crack repair in the shell | R2,400 – R9,500 | Structural repairs cost more. |
| Paving reinstatement | R450 – R1,400 per m² | Matching old paving costs more. |
These are indicative market ranges, not a quotation. They are compiled from published South African leak detection and plumbing pricing to give you a starting point for budgeting. They are not the rate card of any company on this platform.
Pool top-up water is billed like any other water drawn on your side of the meter, and there is no standing leak rebate in the Gauteng municipalities. There is realistically no recovering it, which is the argument for finding the leak early.
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Frequently Asked Questions
How do I know my pool is leaking and not evaporating?
The bucket test. Fill a bucket with pool water, place it on a step so the inside and outside levels match, and compare after 24 hours. If the pool has dropped more than the bucket, you have a leak.
Does the pool need to be drained?
No, and it should not be. Draining a pool in Johannesburg's ground conditions risks the shell lifting, and most detection methods work better with the pool full.
Can I claim the lost water back from the municipality?
Realistically, no. There is no standing leak rebate in the Gauteng municipalities, and a pool tops up through your own meter like any other fixture.
You can log a query and ask for an adjustment once the leak is repaired, but a pool is among the least likely cases to be granted one.
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