This video shows you how to effectively remove pet urine with cheap household ingredients. I've been cleaning carpet s for several years and this type of carpet cleaning is called "everything under the kitchen sink" cleaning. Basically, this video is a mash up of all the different pet urine removal treatments mashed up into one treatment. The host uses: water, distilled vinegar, baking soda, dish soap, and hydrogen peroxide in multiples to remove carpet spots, including pet urine. Almost all these ingredients can be found under the kitchen sink, hence the nickname for this type of cleaning.
I can tell you that this will help removes some spots in the carpet but it will be relatively ineffective on pet urine. This video does not address the main problem with pet urine stains. It doesn't get under the carpet and treat the urine in the carpet pad. Anytime you are cleaning pet urine out of carpet you should use enough solution to get under the carpet and into the pad. This is the only way to effectively remove pet urine from the carpet.
If your looking for a quick fix you can mix water and vinegar in a 50/50 solution. Don't put it in a spray bottle. If you spray it on it won't get deep enough into to carpet to be effective. Sprinkle baking soda over the effective area lightly. Too much powder in the carpet and it will never come out.
Pour the solution over the baking powder and let it sit for at least 20 minutes. After 20 minutes you can start to towel dry the area to remove the cleaning solution and the urine. Use several towels and dry it out as much as possible. Expect it to take 2-3 days to dry completely. If there is still and an odor it's time to call a professional carpet cleaner.