I had to call because I was confused that it did not spray. A not too apparent detergent tank on the front separate from the water tank had to be fill with detergent only. Once they told me about that the amount of filth that it has been removing from my carpet is very nice, I had no idea my carpet had that much black stuff in it. After several cleanings I have yet to get to clear water, but I am working on it.Is much quieter than previous units I have owned. Only problem is that I cannot seem to get the upolstery brust to stay on like it is supposed to. Wish I could remove it entirely, but I can live with it considering the tremendous job it does of quietely removing so much dirt!