vlm is the best, especially if used with a pro 35. I`ve cleaned some really bad carpets but I would be hesitant to offer money back if there was certain issues with carpet, such as bad staining!
I Have had customers many times ? me about VLM, THE WAY I EXPLAIN IT GETS TO THE POINT AND RARELY DO I GET NEG FEED BACK., I Explain to them briefly what iam doing. but when i tell them the fiber pad or bonnet makes DIRECT contact with the carpet they stop with the ?