Guess what? I went by tonight to open the lines and found the guns crying like babies! Or weeping. This must be an old school weep system. Thanks for your help. I have been really lucky so far.
I bought the place ran down then shut down for almost two years after the old owner died. I paid $34,000 sight unseen. When I powered it up, only the wash and rinse worked. After replacing two latches on the two vacuums, fixing a few lines, a few fittings, opening up new buckets of cleaner, and trying to guess how the air mixes, etc, I have two vacuums, and two self serve bays with tire/engine cleaner, presoak, foam brush, wash, and rinse. I think the wax separated and isn’t effective anymore. It has a layer floating on top. I hope the
soap, etc isn’t mixed too strong. It’s set up for $1.50 for approximately 5 minutes.
My next project is getting card readers or a change machine. It’s a 1987 carwash with possibly the original equipment.
I really appreciate the help. I know nothing about the carwash business.