How the method contributes
Where appropriate, controlled use of a suitable tracing dye can help distinguish one possible water path from another. The choice depends on the surfaces, drainage arrangements and risk of staining. Observations are used with the timing of the leak and other checks to establish what the test actually demonstrates.
Where it can be useful
- Suitable accessible water paths
- Some intermittent fitting-related symptoms
- Comparing possible routes into an affected area
Its practical limitations
Part of an investigation, not a guess
The engineer chooses the methods that can usefully test a possibility. Results are compared with the property layout and symptoms before access is proposed. See the full investigation and repair process.
Related service
Ceiling leak detection
Work back from water damage overhead to a likely plumbing source.
When this method may be part of your visit
Tell us the symptoms, previous findings and any restrictions on water isolation. The engineer considers this method alongside the system layout and other available evidence. A test result must be interpreted before choosing an opening or repair.
Read the residential investigation and repair scope, or find your local coverage information.