The answer to tough stains on carpet is to first identify the type of stain and use the appropriate cleaning method. Common causes of tough carpet stains include spills, pet accidents, grease, and ground-in dirt. Symptoms include visible discoloration, odors, and a rough or sticky texture. Solutions can involve a combination of blotting, spot cleaning, and deep cleaning, depending on the severity of the stain.
For DIY stain removal, start by blotting up any excess liquid, then use a carpet cleaner or mild detergent and warm water to gently scrub the stain. Avoid rubbing too hard, as this can push the stain deeper into the carpet fibers. If the stain persists, you may need to use a more powerful carpet cleaning solution or rent a steam cleaner. However, for very stubborn or set-in stains, it's best to call in a professional carpet cleaning service to ensure the stain is removed effectively without damaging the carpet.