The wash I bought was the proverbial basket case. Hardly anything worked right and the prices had not changer since it was built 18 years ago. Three of the bays had cryptopay set up in count down mode. First I had to get every function working in all bays. That turned out to be more challenging than I thought. Then put card readers in the other bays and Dixmore timers to go to count up mode. Also raised the startup cost to $2. I didn't track the coin usage but the credit card use has increased a little over 60%. Turned up the pressure in all bays to 1400 psi and really lay the chemicals on thick. When you make mama happy, you know you're doing something right. It is so nice to have customers come up and say this is the best wash around, as you can actually see the chemicals come out. And I am still cheaper than my competitors.