Hi ive finally taken the plunge to the dark side after 15 years trad,over the last year ive lost a few customers to bigger firms with there flash vans and fancy flyers saying we can reach this and that i bet your window cleaner cant get to that we can clean in the rain so if i cant beat them join them. so ive got myself a 400L 40/40 RO K-system van mount im going to practice on family first before unleashing it on paying customers. any advice on letting people know of the change and the use of wfp would be great. rinse rinse and rinse seems to be the key