Bonneville Tech. They're very rigid and by the book. Every loose item in the car (including tanks) must be bolted or strapped down. I'd rather do that in the trunk than the front passenger footwell.
That video above doesn't do it justice. The recoil from the tank dump has knocked me over backwards in the past. And the stream of water from the open tube goes over 25 feet.
My spray pattern doesn't change from 70psi down to 30, and I'll only 'use' about 5-10psi per track pass. I recharge from the ELC pump. That'* the whole reason I chose the air-delivery method. It keeps my system very simple.