It's a wonder that thing doesn't have a lift on it. My dad has a pressure washing business and his rig is a former Verizon truck with lift bucket. He can only fit a 150 gallon tank though. If he needs more then that and there isn't water hook up he pulls a trailer with a big tank.
They don't have anything to lift off except a few light tools. They never remove the machine. The trucks like this usually run 3 or more guys at a time. I've seen them with 5 guys running three machines at once. I did see a aerotech last week being run by that large commercial company. The name escapes me. You couldn't even tell it was a carpet cleaner unless you knew.
Got it. A few of the painting companies use the electric scissor lifts when they do the condos. They use these trucks to clean residential mostly. The roofs down to the driveways. People here pressure wash everything. All the large communities pressure wash sidewalks and curbs. The fleets some companies have are pretty impressive.