Case Study: 400-Unit HOA Leak | Advanced Leak East Coast

When the property management company called us in March, they were already six months into the problem. Two leak detection companies had diagnosed and "repaired" the leak. Neither fix had held. The HOA board was getting angry. The property manager needed a specialist, and they needed someone who could get in, find it, and actually fix it without closing the pool during peak season.

BackgroundThe Property.

A 400-unit master-planned community in Weston, Florida, anchored by a 25,000-square-foot clubhouse with a large central amenity pool (approximately 40,000 gallons), an attached adult-only spillover spa, and three decorative water features along the pool deck. The property is a flagship amenity for the community and a key selling point for new resident acquisition — which is why visible water loss was becoming a significant HOA board concern.

The pool had been commissioned in 2003 and was due for a plaster resurface in 2027 according to HOA long-range planning. Everything structurally was in good condition. No prior history of significant leaks or repairs.

SituationThe Problem.

By the time we were called, the HOA had been tracking water loss for seven months. Their documented numbers were striking: an average of 400 gallons per day of loss, far beyond normal evaporation even for South Florida summer conditions. Auto-fill was running constantly. Chemistry was impossible to stabilize. City water bills had jumped from an average of $800/month to over $2,400/month.

Two prior leak detection companies had been retained. The first had dye-tested the skimmers, declared a main-drain leak, drained the pool four feet, and patched what they identified as a floor separation. The leak returned within three weeks. The second company had pressure-tested the underground plumbing, diagnosed a "return line failure," quoted $18,000 for an underground re-route, and — when the HOA balked at the price — declared the leak "untestable" and recommended a full resurface to start over.

The total financial impact by the time we arrived:

Water & sewer

~$19,200/year over normal baseline

Chemical costs

~$6,800/year in increased consumption

Prior vendor work

$11,400 paid for two failed attempts

Associated deck & landscape damage

~$140,000 estimated (settlement around pool deck, efflorescence, killed landscaping)

Total annualized loss approaching $180,000 if left unresolved.

ApproachOur Diagnostic.

The property manager requested a same-week visit, and our regional dispatcher from the Fort Lauderdale hub had a crew on site the next day. The job was staffed with a senior specialist and a certified diver — standard for commercial assessments.

Before touching the pool, we reviewed the prior vendors' reports. This matters more than it sounds. A significant percentage of our commercial work involves finding leaks other companies mislocated, and the pattern of their errors often tells us where to start looking.

Both prior diagnoses had focused on plumbing — one on the main drain, one on return lines. Both had ignored the spa spillover feature and the decorative water features along the deck. The HOA's own logs showed that water loss was slightly worse on days the spa was heated (used in evenings by residents). That was the clue.

The real leak wasn't in the plumbing.

The loss pattern — heavier on evening-spa days, lighter otherwise — pointed to the spillover dam, not the pool system. When we pressure-tested the spa isolated from the pool, the spa held perfectly. But when we ran spillover simulation with dyed water, the dye showed up in the bond-beam joint on the back side of the weir.

A tile-line separation along the spillover dam. The dam had developed a hairline separation between the architectural tile and the bond beam, and every time the spa activated, several gallons were leaking behind the tile and draining outside the pool envelope into the deck substrate — which explained the landscape damage too.