How can you be off topic in general chat?
Ended up w/light spots in the carpet once, cleaner was too harsh for the carpet and ended up bleaching that area. Good thing it was going out, 10 yrs later :)
If the unit that was used was rented, never know what was put in prior to you useing, these machines are not normally cleaned out from use to use, we can only hope the previous user didn't fill w/bleach, or some got caught in an area that added it as you used.
Congrats on the new look ;) or Yee Haw Carpet shopping !!