Still waiting on my classes and doing a hands on project at my aunt's house. She has a bedroom that has the absolute worst staining and odor from cat urine. Using a TMed machine Black Label, Liquid Alive, Browning Treatment, Matrix All Fiber Rinse, and Matrix Oxidizer. Stain still wont budge. Have read about using the HP40 volume to help. Where do I go next? My boss wants me to be the pet stain and odor removal tech...I want to do my best. I need quick results. No trial and error things. What really works?