HouseSymptoms · resolution proof
Drain pressure: normal venting versus trap disturbance
Compare the same symptom through baseline, controlled recheck, post-intervention and a meaningful recurrence opportunity.
Browser-local checkpointsPublic entries remain in this browser unless exported.
Comparable evidenceSame location, method and trigger matter more than a single good-looking result.
No certificationThis workflow does not prove hidden damage is absent or authorize repair closure.
Baseline before intervention
Freeze the symptom, method, location and trigger before anything is changed.
Record the clearest comparable starting condition, including what was present and how it was observed.Controlled trigger recheck
Repeat the smallest safe trigger or operating condition that previously produced the symptom.
Compare the same location and method under a similar weather, water-use, equipment or occupancy condition.Post-intervention comparison
Document exactly what changed, then repeat the baseline method without broadening exposure.
Record the intervention and compare the symptom using the same viewpoint, instrument or sensory boundary.Recurrence opportunity
Wait for a meaningful time, weather or use cycle that could reveal whether the symptom returns.
Record whether the symptom returned, stayed reduced or remained absent when a relevant recurrence opportunity occurred.Resolution Proof Ledger
Comparable checkpoints
Improvement becomes more credible only when the method and recurrence opportunity are documented.
No checkpoints recorded yet.Begin with a baseline before changing the assembly or operating condition.
