The answer to 'why is my vacuum pet stains' is that pet stains can be difficult to remove from carpets and upholstery, especially if they have set in over time. Common causes include accidents from pets, tracked-in dirt and debris, and the buildup of pet dander and hair. Symptoms may include visible stains, lingering odors, and poor suction or clogging in your vacuum.
To address pet stains, start by thoroughly cleaning the affected area with an enzyme-based pet stain remover. This can help break down the organic matter and lift the stain. If the stain persists, you may need to use a more powerful carpet cleaning solution or rent a steam cleaner. Regular vacuuming with a HEPA filter can also help remove pet hair and dander that can contribute to stains and odors. If the stains are severe or the odor is difficult to eliminate, it's best to call in a professional carpet cleaning service.