Why would someone design a carwash in such a manner that additional labor would be needed to make it operate acceptably?
The 30 car hour mini-tunnel I mentioned is truly an unattended site. The gas and c-store are independently owned and operated.
As for longer mini-tunnels, say, 50’ or 60’ long building that are designed for a 45 or 50 car peak hour, I would consider an attendant for a number of reasons.
My best hour ever was 92. This was full-service, vacuum at starting line, then
lock and load. The conveyor was 100’, don’t miss a roller. On the busiest of days during the peak season, we had long waiting lines, meaning we could have washed more cars an hour. We could have with “one person” if we had the benefit of stay-in-the-car, automated point-of-sale with smart technology, entrance gates, self-loading conveyor systems, signage and a high performance carwash system.
As for having more people around to towel dry, hand prep or whatever as a way of making some additional income, this strategy doesn’t seem consistent with the express business model; low-price, free vacuums and more automation.
Don’t believe that all this stuff isn’t important to the customer.
My wife occasionally visits one of the very few express washes in our county, nearly one million people. She complains every time.
The place can be hard to get in and out of. The vacuums are located before the entrance gates. There are not enough vacuums and the parking spaces are really tight. A truly low-priced wash is available during very limited hours of operation. Otherwise, a basic wash is $5.00. Quality is ok but really acceptable “clean and dry” means buying the top package. They towel dry, nice touch, but my wife doesn’t believe it is really necessary, nor do I, and that the guys are just “working” tips.
My wife finds the place increasingly hard to like. I don’t go there anymore because it’s a hassle, you can’t get any services and it is expensive to get quality.