I bought this machine to pick up small wet messes - spills, pets, etc. Well, forget it, because there is no possible way to clean out the mess once it's been picked up. The dirty water tank has a small 1 inch hole to drain out the liquid, but leaves no way to clean the scummy stuff out of it. The suction nozzle can be rinsed by removing two Phillips screws, but once again, no way to get the disgusting stuff - you know, the stuff that accumulates over time - out. The rotating brush is almost a joke, as it turns just fast enough to grind the mess INTO the carpet! If the designers spent as much effort into the functionality of this product and they did designing it to resemble a kid's Transformer, it would be a great cleaning tool.