How do you clean a deeply dirty carpet?

There are several methods you can use to clean a deeply dirty carpet, including the following:

1. Vacuum the carpet thoroughly to remove as much dirt and debris as possible. Use a crevice tool to reach into corners and along edges.
2. Pre-treat any stains or heavily soiled areas with a carpet cleaning solution. Follow the manufacturer's instructions for the best results.
3. Rent a carpet cleaning machine or hire a professional carpet cleaning service. These machines use hot water and a powerful suction to deep clean the carpet and remove dirt and stains.
4. Use a carpet cleaning solution specifically designed for deep cleaning. These solutions are typically more concentrated and effective at removing tough stains and ground-in dirt.
5. Use a carpet stain remover to treat any remaining stains. Be sure to follow the instructions on the product label and test the solution on a small, inconspicuous area of the carpet before applying it to the stain.
6. Allow the carpet to dry completely before walking on it or replacing furniture. This can take several hours or even a full day, depending on the humidity and airflow in the room.
7. Once the carpet is dry, vacuum it again to remove any remaining dirt or cleaning solution residue.

Remember to always follow the manufacturer's instructions when using any cleaning products on your carpet. Some materials may be sensitive to certain types of cleaning solutions, and using the wrong product could cause damage.