You should weigh the dirty carpet and then weigh it again after cleaning to let everyone know how much dirt was actually removed.I don't know where this person is located, but in the Middle East some of these carpets are used by GENERATIONS in marketplace scenarios. As such, they are high traffic and exposed to the elements year-round in addition to seasonal flooding. I can understand the cleaner asking to clean them to show his skills, and I will give him the benefit of the doubt about it being real or fake. I just enjoy the process.