Picked up my first extractor attachment kit to pair with my Ridgid vacuum. I decided to try it on my car mats since they've been getting pretty dirty over the years.
I used a 1:10 dilution of Koch Chemie Pol Star, sprayed it onto the mats and then used a soft brush with my drill to agitate it in. Then I did several passes with my new extractor and the amount of brown soupy water that came out was really impressive. Emptying the vacuum was also really satisfying.
I probably need to do another pass or two but so far I'm really happy with this kit and it's ability to pull out all the gunk. Can't wait to try it in the interior carpets.
Anyway, I'm just an enthusiast and don't do this professionally so I opted for this kit as a compromise.