Electronic Leak Detection Explained

How It Works

Electronic line tracing uses a transmitter connected to the pipe (or an inserted tracing wire) that sends an electromagnetic signal along its length. A handheld receiver picks up that signal from above ground, allowing us to trace the exact horizontal path of a buried water line and estimate its depth — even when there’s no as-built plumbing diagram for the property, which is common in older Torrance homes.

This is distinct from leak-finding methods like acoustic listening or thermal imaging — electronic tracing tells us where the pipe runs, not necessarily where it’s leaking. In practice, we often combine it with acoustic detection: trace the line’s path electronically, then listen along that path for the specific leak signature. This combination is especially useful for underground water line leaks where the pipe route isn’t obvious from the surface.

When We Use This Method

  • Mapping a buried water line’s exact path before excavation
  • Confirming pipe depth so digging doesn’t accidentally damage other utilities
  • Properties with no plumbing diagram or unclear line routing
  • Combined with acoustic listening for underground water line leaks specifically

Need Your Line Traced Before Digging?

Electronic Leak Detection Explained

How we trace the exact path and depth of a buried pipe before we ever dig.

How It Works

Electronic line tracing uses a transmitter connected to the pipe (or an inserted tracing wire) that sends an electromagnetic signal along its length. A handheld receiver picks up that signal from above ground, allowing us to trace the exact horizontal path of a buried water line and estimate its depth — even when there’s no as-built plumbing diagram for the property, which is common in older Torrance homes.

This is distinct from leak-finding methods like acoustic listening or thermal imaging — electronic tracing tells us where the pipe runs, not necessarily where it’s leaking. In practice, we often combine it with acoustic detection: trace the line’s path electronically, then listen along that path for the specific leak signature. This combination is especially useful for underground water line leaks where the pipe route isn’t obvious from the surface.

When We Use This Method

  • Mapping a buried water line’s exact path before excavation
  • Confirming pipe depth so digging doesn’t accidentally damage other utilities
  • Properties with no plumbing diagram or unclear line routing
  • Combined with acoustic listening for underground water line leaks specifically

Need Your Line Traced Before Digging?