Surface + problem playbook
Authority graph: secondary / caution surface + problem playbook.
secondary framing for musty odor on unsealed surfaces.
Neutral first; escalate only with label checks and spot tests.
Musty odor appears on unsealed surfaces when the surface conditions, environment, or maintenance pattern allow that problem type to develop or remain visible.
The biggest mistake is treating the visible issue without checking whether the surface is sensitive to the chemistry, abrasion, or moisture involved in removal.
The process should protect the finish, control residue, and avoid turning a contamination problem into a surface-damage problem.
Dwell-and-lift cleaning: defined technique, compatible surfaces, and clear stop points.
Neutral surface cleaning: defined technique, compatible surfaces, and clear stop points.
Touchpoint sanitization: defined technique, compatible surfaces, and clear stop points.
Grout guidance for porous joint soil, soap scum, calcium buildup, mildew, sealing cycles, and acid/abrasion risk.
Painted wall guidance for fingerprints, scuffs, dust, washable paint limits, moisture control, and finish dulling.
Shower glass guidance for soap scum, hard-water deposits, cloudy film, etching risk, and recurring maintenance.
Tile surface guidance for soil identification, grout interaction, finish preservation, and wet-room or kitchen maintenance.
Organic stains: what it usually is, safe method fit, and when to stop.
Discoloration on surfaces: what it usually is, safe method fit, and when to stop.
Water spotting (evaporation film): what it usually is, safe method fit, and when to stop.