got big job in the morning, cleaning commercial carpet with heavy traffic areas and stains ,not sure how much O2 system should I use first time to try product out since ,it comes highly recommended.
Do you have Judsons modifier? If not you can always start out at 3 ounces to a gallon of water and see how that works for you. If you need it stronger you just mix it a little stronger , I'm sure Les said that will bring the PH up.