Anyway, we do softwashing using downstream method with Bobs 4 pack nozzels and wash mix. I have done several houses and Im still getting water behind the siding which leaves weap hole marks and is a pain in the butt to get off. So, I try to stand back, I go with the seams of the vinyl, when I have a tall house I try to arch it but…..STILL the weap hole marks. Im just not understanding what Im doing wrong here. So if you have any tips that Im not already doing please let me know. So frustrating having to go back and touch up…just seems unprofessional to me. Is everyone getting weap hole marks?