PERSISTENT BOTTLE ODOR / RESIDUE RECORD Observation, not diagnosis or water-safety certification. Bottle brand / full model / affected part: Observation: location, visible residue or damage, timing: What the actual model instructions permit: Cleaning, rinse and drying steps actually completed: Products used / actual directions / unknowns: Part accessible, damaged or needing correct replacement: Manufacturer question and correct replacement identity: Separate water source / report or appropriate test question: Current advisory or unusual exposure requiring other guidance: What remains unresolved before reuse: Do not taste questionable water or mix cleaning agents. Normal smell does not establish water safety.