Heat builds quicker ftom a cold fresh tank than any unit I've ever studied.
Dual wanding autmn any combination of 300 ft of hose is as good as a Big Truck but I would imagine beyond 300 it wouldn't quite compare as3 AT owners say the D12 is unuseable at any length but it certainly is with the 650 at 150'.
Hot AF with the 12s 6 flow, with NO reason the flow more. An amazing combination.
My friend Alex just brought his "New" HP650 Everest over to my place. He bought it used from John Olson for something like $20k. Motor was pulled out of a wrecked Hyundai with 30k miles. The TM was rebuilt and cleaned up with new powder coat. The new meter shows only 2 hours. Seems like a nice little unit. Just a little issue with the temp gauge. Something about having to jiggle the sensor. I think it's going to be a pretty good machine. It's a little quieter than my 870.
Ugh, I gotta go clean an assisted living dining room. Off I go.