My carpets are so gross with 3 kids carpet cleaner - Awesome! Should've done before/after pics, but I had 3 almost black stains on my off-white carpet and they came up beautifully! Had to do it twice, but they had been there a LONG time and were really ground in. 2cups hydrogen peroxide and 1/4 cup baking soda. Put in a spray bottle squirt- scrub- vacuum!
Ok ,I have had a few requests to share this again. Please share it to your time-line because I may not find it the next time. Works on every stain I've tried it on The ultimate stain remover that actually works on a seriously set in stain! Never buy oxyclean again! The mixture is: 1 tsp. Dawn dishwashing detergent 3-4 tablespoons of hydrogen peroxide couple tablespoons of baking soda. Scrub on with a scrubbing brush