Anything 3 story, I use a pole, I use a conical spray tip Ben did for me, it sits in a Gardiner pole.
Anything below I use the Lance, with an adjustable spray tip. It’ll easily hit 3 story’s.
When I do commercial, I use my pressure washer for the rinse, only as it’s faster, using a sniper nozzle.
But for most domestic jobs, it’s just spray out of one barrel, then move the suction hose into the second barrel full of water to rinse. Works a treat. You’ve got up to 30lpm but only 100 odd psi, so it’s fast rinsing and enough to rinse the loosened dirt away.
If windy, overspray is an issue, so get the pole out to be safe.