Start by mixing water and vinegar in a spray bottle. Then add salt and essential oils and mix well. You can use any essential oil you like. The goal is to create a pleasant scent on the carpet.
If you like citrus fruits, opt for lemon or grapefruit. If you want a relaxing scent, opt for lavender. Be careful if you have pets, as many essential oils are toxic to them. Have you ever made your own homemade carpet cleaner or homemade carpet cleaner for machines? Did it work for you? What is your recipe? Fill the container to the fill line with warm water and use the machine to clean up dirt, odor, and spills the same way you would with a commercial carpet shampoo.
Before you spend a lot of money on an over-the-counter carpet shampoo, try making your own homemade carpet cleaner and thoroughly scrubbing dirty areas (and errant stains). Dollar Tree had a lot of different amazing Los Angeles cleaners, but not specifically the one you showed in your YouTube video, I had to go to Lowes to buy a big jug. Make sure you don't get the carpets too wet, as it will ruin the backrest and cause the carpet to shrink. However, the carpet is a bit harder because the stains that come in are a little harder to clean.
If you use a steam cleaner to clean carpets, you don't have to keep using the recommended and harmful professional carpet cleaning solutions. Here are several great homemade recipes for carpet cleaning solutions to clean your carpet and remove unsightly carpet stains. Personally, I have used this recipe with Rug Doctor rental machines, my SpotBot handheld machine and with my Bissell vertical carpet cleaner. With that said, I suggest that you read the instruction booklet that comes with your carpet cleaning machine for warranty information.
Making a homemade carpet cleaner is an easier and greener alternative to using commercial carpet cleaners found in the store. While there are home remedies for cleaning up small spills and stains, it's good practice to steam clean a carpet every 12 to 18 months. A homemade carpet cleaning solution will also cost much less than the ones you can buy in the store.