What diagnostic tools help locate water leaks?

• A. Visual inspection
• B. Moisture meters and infrared cameras (BPI 6.6/6.7)
• C. Acoustic listening devices
• D. Pressure gauge readings

Answer: (B)

Locating water leaks relies on detecting moisture and temperature differences that point to where water is entering or remaining.

Moisture meters measure how much moisture is in building materials, helping you spot damp areas that may indicate a leak behind walls, under floors, or in ceilings. Infrared cameras show surface temperature variations; where water is present, moisture and evaporation create thermal patterns that the camera can visualize through finishes and insulation. Together, these tools let you pinpoint the likely leak area without destructive digging or demolition.

Visual inspection can miss leaks that are hidden behind surfaces. Acoustic listening devices can help find leaks by capturing sounds from pipes, but they’re not always effective for concealed moisture inside walls or structures. Pressure gauge readings can show that a system is losing pressure, suggesting a leak exists, but they don’t reveal the exact location.

So, using moisture meters and infrared cameras provides the most direct, non-destructive way to locate water leaks.