I bought a used "old Blue" OP machine from a user here (gchivi) this spring and up until today I have only cleaned a couple of area rugs with it because I have hardwood floors in my house.
I have been very apprehensive about using this machine on someone else's carpet and then throw in the fact that I have been super busy at my 9-5 job and this machine has been sitting around doing nothing all year.
A friend of mine told me that his mother wants to put her townhome up for sale and move into an apartment because she can no longer work and social security is not enough for her to live on. She needed the carpets cleaned in order to put it on the market but she can not afford to do that either. I told my friend I would see what I could do to help her but I would make no guarantees on the quality of the work since I am a greenhorn at this.
I had never been to her townhome until today and had no idea what I was in for. I got there and I almost gasped audibly, this place was disgusting. The carpet is a very light color, almost white, and there were spots on almost every square foot of the place. Lots of dirt in the high traffic areas made the carpet almost black and tons of spots where her grandson's wiener dog had decided to use her living room, dining room and one of the bedrooms as a bathroom.
I looked around and decided that there was no way this place was coming clean and she would definitely need to rip up this carpet and replace it but since I was already there with all of my supplies I might as well give it a go. I have to say, after I got done the carpet almost looked like BRAND NEW! My friend was there and all he kept saying was it looked like NEW. I never would have guessed that I could have done such a good job with the tools I have. I was amazed myself. Almost every single spot came out.
I have to say: I NOW GET IT! I understand why so many of you are so passionate about this method of carpet cleaning, IT WORKS!