Remove Carpet Stains: 1 tablespoon baking soda 1 tablespoon oxi-clean 1 teaspoon vinegar 1 tablespoon dish soap 1/2 cup water. Mix together in heat in the microwave for 20 seconds. Then dab with the bristle brush onto the stain and scrub. Then get a rag wet it with warm water, and scrub the solution until foamy on the carpet. Clean up the foam and vacuum the carpet, the stain will be removed and your carpet good as new.