How Do You Detect A Mains Water Leak?

To detect a mains water leak, first turn off all water to your property and check the water meter flow indicator. If it continues to move, you have a leak. Next, turn off the main internal stopcock and check the meter again to see if it stops moving, which suggests the leak is within your property boundary. If the leak continues, professional leak detection methods such as acoustic equipment, thermal imaging, tracer gas, or moisture meters are used to locate the leak.