Inground Pool Leak Detection & Repair in Georgetown, TX

An inground pool buries its hardest leaks

Unlike an above-ground pool, an inground pool runs its suction and return plumbing underground, beneath the deck and the surrounding soil. That is where its toughest leaks live, out of sight and impossible to spot by looking. The shell, whether gunite, plaster, or fiberglass, can crack and leak too, but the buried lines are the ones that fool people, because the water vanishes into the ground with no surface clue beyond a soggy spot or a settling deck.

Reading where the water level finally stops helps. A level that drops past every fitting and keeps going points to the shell or the main drain, while a leak that only shows with the pump running points to the pressurized return side.

Plumbing, shell, or fitting

Inground leaks fall into the same three families as any pool, but the plumbing side carries more weight here because it is buried. Suction lines leak when the pump pulls, sometimes showing as air bubbles at the returns. Return lines leak under pressure when the pump runs. The shell cracks from ground movement and age. And the fittings at the skimmer, returns, lights, and main drain seal against the structure and can weep at their gaskets.

Georgetown's limestone ground and its drought-and-rain movement put real stress on both the shell and the buried lines, which is part of why inground leaks turn up here.

Pressure testing what you cannot see

The honest way to find a buried line leak is to pressure-test it. We isolate each suction and return line, pressurize it, and watch for the drop that means it is losing water underground, then locate the leak along the line so any repair is a targeted dig rather than a torn-up deck. For the shell, dye testing at suspected cracks shows water being drawn in, and a careful inspection separates a cosmetic crack from a leaking one.

That distinction matters, because not every crack in plaster leaks, and not every leak is where the surface looks worst.

Repairing without redoing the deck

Once a buried line leak is pinpointed, the repair is an access at that spot, not the whole deck. A leaking fitting gets resealed. A structural crack gets repaired with the right material for the shell, gunite, plaster, or fiberglass. A main drain leak is handled at the source. We aim for the smallest intervention that genuinely stops the loss.

After the repair we refill and retest against a bucket measurement, confirming the pool holds before we consider it finished.

Why it is worth finding early

A buried inground leak does damage you do not see until it is expensive. Water escaping under the deck erodes the soil and base, which can crack the deck and, over time, stress the pool shell itself. Around Cimarron Hills and Berry Creek, where inground pools are common, a season of unaddressed loss can turn a line repair into deck and structural work.

If your deck is sinking or staying soggy, or the pool drops past every fitting, the buried plumbing is the place to look first, since that is where an inground pool hides its most expensive leaks.