Mains leak detection at a working petrol garage
The meter kept moving with every outlet shut. Tracer gas led to a flooded chamber where several mains leaks were repaired.
Water leak warning signs
The garage was losing 15 litres a minute. No surface water revealed the source.
Leak detection methods used
A pressure test lost pressure immediately. Tracer gas and acoustic listening directed the engineer to a chamber beside the external stop valve.
Where the water leak was found
Several leaks affected the mains pipe inside the water-filled chamber.
Leak repairs and next steps
ADI replaced the damaged section. The supply held pressure for 30 minutes and the meter showed no consumption with outlets closed.
For your facilities team
Check the meter with all known outlets closed. Recording unexplained consumption gives the engineer a useful starting point.
More commercial leak detection case studies
School: a buried classroom supply capped off
A hissing classroom and saturated ground led to a leaking desk-tap supply. The school chose to cap the branch rather than excavate.
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.