Record the change
Warning signs you may have a slab leak
An unexplained rise in water use, damp or warm flooring, reduced pressure and running-water sounds while fixtures are off are reasons to request an inspection. New cracks or a persistent musty smell can also belong in the conversation. Each observation needs to be considered with the plumbing findings.
Tell the team where you first noticed the change and whether it is spreading or recurring. A mark on the floor does not identify a particular damaged pipe by itself. Keep the observations together so the assessment can follow the pattern rather than one isolated clue.
