School leak detection beneath a classroom floor
A hissing classroom and saturated ground led to a leaking desk-tap supply. The school chose to cap the branch rather than excavate.
Water leak warning signs
The meter recorded a litre every five seconds. The field near the affected classroom was wet.
Leak detection methods used
Closing the branch valve stopped the hissing and reduced consumption. Tracer gas and acoustic equipment traced the leak to pipework feeding the teacher’s desk tap.
Where the water leak was found
The leaking pipe was buried beneath the classroom’s concrete floor.
Leak repairs and next steps
With the customer’s agreement, ADI capped that supply. A 30-minute pressure test held at 3 bar. The desk tap was taken out of service.
For your facilities team
Discuss whether an affected outlet is still needed. Isolating a redundant branch can sometimes avoid opening a finished floor.
More commercial leak detection case studies
Petrol garage: 15 litres a minute lost underground
The meter kept moving with every outlet shut. Tracer gas led to a flooded chamber where several mains leaks were repaired.
Hospitality premises: continuous use traced to a urinal valve
The meter showed continuous consumption. Testing found a faulty urinal flush control and dripping fixtures, with no concealed pipe leak indicated.