So i used SH and simple cherry for the first time. I usually use eliminator. Im sure i put way too much cherry and it actually clogged the down stream filter at one point. My question is… Are these stains from the excessive simple cherry? (White spots are rain drops on lens) These pictures were taken 2 days after the wash…
You got water behind the siding, when you left it came out in several places and brought dirt with it. When it evaporated the gunk is what’s left behind. This usually happens if you are to close. The arc of water should be downward when it hits the surface.
You need to rewash the house and this time dont stand too close and dont use such high pressure. What size machine are you running and what size tips are you using?
The shooter tip is the reason for the problems, it should only be used on the higher areas and you do not need to stand next to the house to reach the peaks. The tip forced the water up and behind the siding. Your helper either needs to be retrained or let go.
Trick is to not get it there in the first place, which is technique and practice. I’ll try to describe downward arc. Picture water leaving your nozzle going as high as it can. The point where the flow starts coming back down is where the downside of the arc begins, you need to stay far enough away that only the downward flow hits the wall.