1. Stop at the safety boundary
Do not continue using a loose toilet if water reaches concealed flooring.
2. Capture the baseline
Take one context photo, one close view and a short note describing location, date, weather, recent water use, equipment state and occupancy.
3. Track the trigger
Flushing, tank refill, movement or humid weather.
4. Compare, do not assume
Supports this pathway
- Water appears after flushing
- The bowl moves at the floor
- The supply line or tank becomes wet during refill
Weakens this pathway
- The area wets without toilet use
- Only exterior condensation is present
- A nearby bath or pipe is the trigger
5. Repeat only safe checks
- Dry the area and use absorbent indicators at separate components
- Observe one flush cycle
- Check for movement without forcing the fixture
6. Decide the next step
If the pattern is active, expanding, safety-related or requires opening inaccessible construction, stop self-help testing and prepare an evidence-based handoff. A plumber should reset or repair the fixture and assess subfloor damage when leakage persists.
7. Verify the outcome
After any action, repeat the same observation under a comparable trigger. A dry surface immediately after work is not sufficient proof when the original symptom was intermittent.
Observe→Compare triggers→Repair source→Verify outcome
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