Latent Stains
At times, stains may appear on your carpet for no apparent reasons at all, often after cleaning. These stains actually originate from long-forgotten spills that have been hidden by the soil in the carpet. These are caused by household chemicals like floor wax, detergents, cosmetics, deodorants etc. One culprit that has suddenly come in limelight is benzoyl peroxide in popular acne medicines which rubs off from hands and under ideal humidity and temperature becomes glaringly obvious.
Another reason for the sudden appearance of latent stains can be the wicking up to the surface of spills that have penetrated deep into the carpet. Water soaking into the backing can cause chemical reaction with dyes in the backing and these rise up to the surface through the pile fabrics.
A professional cleaner should be consulted to correct these stains but, be prepared, the damage to the carpet may be irreversible. To prevent latent stains, IMMEDIATELY clean up all spills and remove all stains at the earliest possible stage.