Isolate leaking zones across distribution networks.
When the question is "which zone of the network is losing water," step testing is the right answer. By systematically closing valves and watching flow at a central meter, we isolate the zone containing active leakage, then progressively narrow to specific main segments before deploying acoustic methods on the suspect section. This is the workhorse method behind utility-scale leak reduction programs, and it scales from a small commercial property's loop to a municipal district metered area.
Correlator is a sub-division of Leak.ca, the Greater Vancouver leak detection company trusted since 1999. Every site visit is delivered by certified technicians using calibrated equipment, with documented findings formatted for insurance, engineering and procurement use.
We don't sell remediation. Our role is independent detection and assessment — the data you and your professional team work from.
Most step tests are done at night with minimal customer impact. We coordinate with utility operations carefully.
Existing district metering usually suffices. Where it doesn't, we'll recommend temporary instrumentation.
Step testing detects leakage as low as a few cubic metres per hour in a small zone.
Other services from Correlator that often pair with Step Test Sectoring.
Cross-correlator surveys on metallic and plastic mains.
Surface-level pinpointing of buried supply leaks.
Insertable sensors for large-diameter and transmission mains.
Phone is fastest. Email is fine too. Both reach a real person.
