Well it sprays the shamppoo product so well you will run through quickly and need to buy a considerable quantity. However the suction will not lift even a quarter of what was sprayed out. We had to pat and air dry... in hindsight I should have just bought the other brand for $20 more. Also after 4.5 of charging, and full bars of battery life, I was not able to shampoo with decent suction for more than 10 minutes.