That’s a beauty! And no surface cleaner for the driveway? Obviously you were up on that roof. SO, my first question is about safety: since you start at the gutters and work your way up, are you able to traverse those shingle roofs safely, even after you’ve applied your solution?
12v FB. GPM? Hose ID? How do you recharge the 12v battery, or do you hook it up through the truck or trailer? Rinsing. How necessary, and how thorough? What nozzle and wands do you use?