The Problem
A Surrey dealership's water bill doubled from $800 to $1,600/month. No visible leaks. Owner was about to approve exploratory trenching.
Detection Method
Acoustic correlation located a leak at 14m from the meter under the customer parking lot. GPR confirmed pipe depth and lateral position.
Results
1m x 1m patch. Corroded copper service line replaced. Bills returned to normal. $8,000 in exploratory trenching avoided.