Potosi’s changing clay soil puts added stress on piping beneath a slab.
In Potosi, clay-bearing ground dries out and contracts during hot, dry stretches, then expands again when rain returns. That repeated movement works against rigid supply lines and fittings below a concrete foundation. It does not prove that a slab leak is present, and cracks alone do not identify one, but it is a reason to locate the source carefully before deciding on a repair.
Dry weather also changes what is visible around a foundation. A leak can stay less obvious through a long hot spell, while heavy rain can hide damp soil or moisture near the slab edge. Persistent moisture without a weather explanation, a warm floor, falling water pressure, or water use that does not make sense warrants an evaluation.
Once the leak is accurately located, the condition and route of the surrounding pipe matter as much as the opening itself. A direct repair beneath the slab is not automatically the only practical choice; the best approach depends on what the pipe condition shows beyond the failed point.