You may be confused by the term slab leak. In construction terminology, a slab is the large concrete floor in your home. The slab, itself, is not leaking; a water pipe beneath the slab is leaking. This seepage of water is what the construction and insurance industries call a slab leak. It is important to identify any leaks and complete a slab leak repair before it causes severe damage to your home.
Slab leaks usually come from one of two sources. One of those sources is the sewer lines that run under and around your home, and the other is the water lines that are under and around your home. Here are a few ways to check for signs that one of these sources is leaking under your slab: