I will agree with the previous post, the units usually come back either damaged, or clogged. In my experience with sweeper / scrubber rentals it is best to rent only to customers that you know will use it a warehouse scrubber not a parking lot and road sweeper. It is almost impossible to make good rental profits on a machine designed to sweep, that is driven by someone who is unfamiliar with its capability. To sum it all up, we rent scrubbers / sweepers only as a convenience to our good existing customers, renting to everyone would ***.... for awhile anyway!!