VLM cleaning berber carpet

Using VLM with the Centaur rotary to clean an older berber carpet in a rental suite with heavy soil, organic and oily stains. Carpet is brown and hides stains well and along with the heavy wear and multiple damaged areas it made it difficult to show the difference during cleaning. The microfiber pads hid the dirt extracted as well but the cotton pads showed the amount of soil being absorbed. Overall the carpet was much cleaner and brighter and more even in colour and texture.