Some leaks sit well below the surface, in main drains, skimmer lines, or buried plumbing that runs deep under the deck and yard. These are the leaks that scare people, because the mental image is a jackhammer and a huge bill.

That image is exactly why detection matters. Electronic and acoustic location narrows a buried leak to a small area, so any excavation is precise and minimal. Nobody should open up a deck on a guess, and with a proper detection pass, nobody has to.

Soggy or sinking areas of the yard or deck, uneven or heaving concrete, or heavy water loss that acoustic testing traces to a buried line.

Confirm it is a real leak before you call anyone. Rule out evaporation with the free water-loss test or the bucket test. If it is more than evaporation, a detection pro pinpoints the exact spot so any repair stays small.