Bingo. If takes longer than 3 minutes to soap a side if your hoses are laid out right, realistically you’re crawling. 15 minutes max dwell time on the first and worst side, rinse it last if possible.
Was hooked up and did the north side only on this house with rinse and on my way in 20 minutes yesterday. Don’t normally do north sides only, but this HOA pays me every couple months to do a couple.