New to the forum but owner/operator for 5 years in Nor Cal. I have a 3 bay wash. One bay has recently been delaying(taking about 30-40 seconds) in switching over between rinse, soap and wax. The control dial seems to be working fine because when I switch to foam brush, it switches immediately. I replaced the valve for the soap because it was leaking/not closing all the way. That did not fix the delay though. Anyone have advice on where to look? Seems improbable that all three valves need to be replaced. Thank you for any advice/help that you can provide....Marcus