First of all, tackle the stain as soon as possible. The less time it has to sit, the easier it will be to remove.
Paper towels and washcloths are your best friends at this stage. Press down on the stain and soak up as much moisture as possible.
Remember to press down on the stained carpet. Don't rub at it or spread it around. Scrubbing can damage your carpet and make the stain worse.
Finally, make sure you use the right approach. Lots of stains can be dealt with water or a commercial cleaner; however, some require special treatment.
Make sure you check out the wide selection of commercial carpet cleaners. These mixtures have been specially formulated to break down dirt and dissolve substances that may be stuck in your carpet.
Heated water can work wonders on an RV carpet! This is why steam cleaners are one of the best universal solutions for stains.
If your carpet is dirty, you may want to use a dry powder treatment. This doesn't work for deep-set stains, but it's a good way to freshen up your carpet and strip away the surface-level dirt.
If you want to go for a more traditional soap and water combination, you can't go wrong with laundry detergent, dish soap, and vinegar. It's perfect for water-soluble stains that come from juice, alcohol, soda, etc.
Ammonia or diluted bleach can be used to treat water-soluble stains. Use 1 tablespoon ammonia per 1 cup of water or a mixture of 5 parts water and 1 part chlorine bleach. Just make sure that your carpet won't be harmed by these substances.
Sometimes a stain can't be removed by liquid alone. If something hardens in your carpet, you need to use a physical tool to remove the worst of it. Ice can also harden these substances and make it easier to remove the chunks.