It seems, from reading the other reviews, that some people were lucky and others were not. We were not. The first one simply quit after using it twice. We took it back and got another The second and third ones would not spray cleaning solution after the second or third use. We took the second one back and got another, but it did the same as the one before. By this time we gave up and sprayed cleaning solution on the carpets ourselves without using the machine. It sprays water only when you push the trigger then picks it up as though it thought it really did something. We won't get another Bissell. We started to take this one back at first, but that is such a hassle that we made do using it as I said.The self-propelled feature is nice, but the unit is badly made and not worth the money. I guess we should have taken it back and got our money back or a different make of shampooer. Next time we will forget about the Bissell.