Plumbing diagnosis and evidence standards
A symptom routes inspection; it does not automatically select a repair or replacement. Recommendations connect to the affected fixture, accessible route, measurements, material, equipment, recurrence, and stated test limits.
The record distinguishes customer reports, visible water, functional results, camera views, instrument indications, confirmed failures, and concealed conditions.
- Trace fixture to route
- Use appropriate tests
- Preserve uncertainty
- Avoid generic replacement claims