I will have to go look at one so I can ask an informed question that you can't Google for the answer.
You've missed the point. You and your friends are posing as car wash owners/operators/investors when none of you have real experience. You're giving advice on things about which you have no knowledge or experience. This message board is mainly for professionals to ask advice from other professionals.
Actually I'll give you a head start, ask me a question about anything doesn't need to be a laserwash. Secondly, I hardly know these people. If you want me to send you proof of a pay stub or something like that or my nametag or any piece of equipment I operate, I will be happy to do so. To clarify other things aswell, the softgloss maxx in my profile is a machine I have performed service on. I am not "posing" as anything, and I have ~13 years of knowledge in this industry.