The Problem
Homeowner's sump pump ran every 2 minutes, even in dry weather. Concerned about a major plumbing leak or foundation failure.
Detection Method
Plumbing leak check: acoustic correlation on all underground pipes — no leaks found. GPR survey of perimeter drainage identified a collapsed section of weeping tile on the north side of the house.
Results
Collapsed weeping tile section replaced: $2,800. Sump pump now runs only during rain. $0 unnecessary plumbing or foundation work.