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Pool Leak Detection in Irene — The Pool That Lasted Three Generations

Irene village is one of the few Pretoria suburbs with pools that have belonged to the same family across three or four generations. The oldest Irene homes on the village heritage layout have pools that were dug and lined in the 1960s and even the late 1950s, some still with their original plaster or Marbelite finishes intact under decades of re-plaster and re-tile. On our Irene pool callouts we're often the first professional leak inspection the property has ever had — the pool has been maintained by the family, by the same pool company for decades, or by a rotating series of caretakers who fixed what broke without a full diagnostic.

That heritage changes everything about the diagnostic. What we're looking at is not a modern pool with an aged fault; it's an aged pool with layered history. Every generation of owner has added, repaired, or overlaid something — a solar heater loop installed in the 90s, a re-tile in the 2000s, a variable-speed pump installed in the 2010s, a stone-effect coping done in whatever decade taste last dictated. The leak is somewhere in that layered history.

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R2,150 flat rate · Two-business-day photographic report

What ages first on a 40+ year Irene pool

The interior surface material matters. Original Marbelite plaster from the 60s and 70s has usually been re-plastered at least once — the interface between the original and the re-plaster is where hairline cracks first appear, and it's where dye testing gives us the fastest read. Older marble-plaster pools that have never been re-plastered often show craze patterns across the whole shell; craze itself doesn't leak, but any single fine crack within a craze zone can.

Mineral scaling from decades of borehole top-up water is another Irene-specific factor. Many older Irene properties have used borehole water to fill pools since municipal restrictions began, and mineral load has built up on tile-mastic joints, coping-stone mortar, and skimmer-throat seals. That scaling doesn't cause leaks directly, but where the scale has flaked off and taken the underlying sealant with it, a small leak opens.

Aged plumbing on the return lines is the third factor. Original returns on 60s and 70s Irene pools were often galvanised steel or early plastic that hasn't been replaced. Corrosion at the shell interface (where the return passes through the concrete) is where those systems eventually fail.

Reading a historic pool before pressure-testing

On an Irene pool with layered maintenance history, we spend the first fifteen minutes of the session reading the pool visually before doing anything with pressure gauges. We photograph every visible layer of history — the re-plaster line, the retiled section, the different coping generations, the solar-loop connections, the plant-room additions. That photographic record forms the report baseline; the pressure test then narrows the leak to a specific section of that history.

Dye testing on a heritage Irene pool is particularly useful because it distinguishes between actual current leaks and old repaired defects. A hairline in the shell that no longer leaks (a repaired 1990s crack) shows differently under dye than a hairline that's currently open. Both look identical visually; only the dye distinguishes them.

The R2,150 session — for heritage pools

The flat rate covers the full session including the 15-minute historical read, the three-circuit pressure work, and the shell dye testing. Where an Irene pool has more layered history than the session allows to fully document (which happens on 60-year-old pools that have been repaired repeatedly), we may propose a follow-up session at reduced scope focused on specific concerns — this is documented on the linked service terms page.

Pricing, guarantee, terms

R2,150 flat for the single-pump session. Photographic report with numbered findings and a repair quote emailed within two business days. On confirmed leaks that we cannot locate with our full detection kit, you receive a full refund under the No Find, No Fee guarantee. Please read the pool leak detection service terms before your appointment.

Prep for a heritage Irene pool

Water level filled to halfway past the skimmer.
Water clear enough to see the pool floor. Older Irene pools sometimes have persistent haze from borehole mineral load — if the pool is visibly cloudy, please have it treated or backwashed a day or two before we arrive.
Pump and plant functional.
If you have any historical documentation about the pool — original build plans, previous repair invoices, retile dates, plumbing upgrade records — please share what's available at booking. Even fragmentary history speeds up the diagnostic considerably.
Please clear leaf debris and garden growth around the coping perimeter so we can do the visual read cleanly.
Enclose dogs.

Frequently asked questions — Irene

The pool has been in the family since 1968 and we've never had a leak — should we book a routine inspection?

Not necessarily as maintenance, but yes if you're planning to sell, insure, or refinance the property. A leak inspection provides documentary evidence of the pool's current condition, which speeds up transfer and insurance processes. Where the pool has never had a leak reported, the inspection typically confirms a clean bill of health and produces a report you can file with the property documents.

We had the pool re-plastered fifteen years ago and it's started to lose water for the first time. Is the re-plaster failing?

Possibly. Re-plaster jobs generally have a service life of about 12 to 20 years depending on chemistry management, and a re-plaster that's fifteen years old is within normal end-of-life range. What we'll do on the inspection is dye-test across the re-plastered surface — if the dye consistently draws to multiple points, the whole finish is at end of life; if it draws to one or two specific points, targeted repair is possible without a full re-plaster.

The pool has a solar heater loop that was installed in the 90s. Should we isolate it before the test?

No — leave it connected. The solar loop is part of the plumbed circuit and any leak on the solar side (which is common on 90s-era solar installations where the connectors have aged) will show on the pressure test. If the pool passes the pressure test with the solar loop open, we then isolate the solar loop and re-test to confirm the loop itself isn't losing.

Our Irene home is on the heritage list and any excavation on the property requires municipal approval. Will your report help with that?

Yes, on both fronts. First, our detection is non-invasive so the inspection itself never requires approval. Second, where the report identifies a leak that will require excavation to repair, the GPS pinpoint and photographic evidence provide exactly the documentation the municipal heritage office typically requests to authorise a limited-scope trench. Heritage-property owners in Irene have used the report to support trenching permit applications.

No Find, No Fee

On a confirmed leak — meter turning with taps closed, or a measurable pressure drop on your pool circuit — if we cannot locate the source, you receive a full refund.

Read the full No Find, No Fee terms →

Book online

The wizard takes about 60 seconds — we'll email a callout confirmation and follow up on WhatsApp.

Neighbouring suburbs

Pool leaks — Centurion Pool leaks — Faerie Glen Pool leaks — Moreleta Park

We also offer water leak detection in irene.