Before using any spotting chemical, what should a technician do?

Testing in an inconspicuous area is crucial before using any spotting chemical because it helps determine the compatibility of the chemical with the carpet material. This preliminary step allows the technician to observe any adverse reactions, such as color fading, discoloration, or damage to the fibers, without risking a visible area of the carpet. It serves as a safeguard against potentially damaging the carpet, ensuring that the cleaning process is effective and safe. Carpet materials can vary widely in terms of dye stability and fiber composition, making this test essential for a successful cleaning outcome.