How Is a Slab Leak Detected
Slab leak detection is the process of locating hidden water leaks beneath a concrete foundation without unnecessary damage. Professional plumbers use specialized equipment and testing methods to pinpoint the leak accurately before repairs are recommended.
Initial Plumbing Evaluation
The detection process begins with a review of the home’s plumbing system and reported symptoms. This helps narrow down whether the leak is likely under the slab or elsewhere.
- Review of water usage and recent bill changes
- Checking visible plumbing and fixtures
- Isolating hot and cold water lines
Electronic Leak Detection Equipment
Electronic listening devices are commonly used to hear the sound of water escaping from pressurized pipes beneath the slab. These tools help locate the general area of the leak without breaking concrete.
- Acoustic listening equipment
- Amplification of underground water movement
- Pinpointing leak location through sound patterns
Pressure Testing the Plumbing System
Pressure testing helps confirm whether a leak is present and whether it is on the hot or cold water side. This method provides clear evidence of an active leak.
- Isolating sections of the plumbing system
- Monitoring pressure loss over time
- Identifying which line is leaking
Thermal and Moisture Detection
For hot water slab leaks, thermal imaging and moisture detection tools may be used to identify temperature differences or moisture beneath flooring.
- Thermal imaging for hot water lines
- Moisture meters for damp flooring
- Non invasive confirmation of leak areas
What Happens After the Leak Is Located
Once the slab leak is identified, repair options are discussed. Depending on the pipe condition and location, solutions may include spot repair, rerouting lines, or full repiping to eliminate future leaks.
