Meter letter at a 1920s semi with a later porch
The property
A 1920s council-built semi, now privately owned. Its original metal supply crosses the front garden, then runs beneath a brick porch added decades later to the hall stop tap.
The problem
Affinity Water's letter mentioned water flowing day and night, yet every tap and cistern checked out and the garden looked dry.
How we found it
With the stop tap shut, the meter kept turning. The ground microphone was quiet across the lawn but loud on the porch, and tracer gas rose through the grout between two porch tiles.
The outcome
Both tiles were marked and photographed. The owner chose to renew the old run from the boundary, quoted separately, and kept our report in case of a leak allowance.