Under-Slab Copper Pinhole Leak on Hillside Estate
Location: Near South Hills Country Club, South Hills, West Covina, CA
The Scenario: A high-pressure copper line beneath the slab foundation developed a pinhole leak due to expansive clay soil friction, migrating 60 gallons daily under hardwood flooring.
Equipment Deployed: FLIR E8-XT thermal camera, acoustic listening discs, Phoenix DryMAX XL LGR dehumidifiers, and Injectidry floor mat systems.
Psychrometric Drying Log: Initial subfloor moisture: 28.4% WME. Day 2: 19.1%. Day 3: 13.8%. Day 4: 10.9% (Dry Standard Achieved).
Outcome & Timeline: 4 days to reach IICRC dry standard (11% wood moisture equivalent); hardwood saved without slab demolition.