I have a problem with the soap in my three bay car wash this is hannah coleman's super saver. I have soap in all three bays but when the soap in the tank runs out and the soap tank is filled, the soap no longer comes out in any bay and I have to purge it to get it working again. Any suggestions on how I can fix this problem. Also anybody know what the settings are for the pressure on air and product for the triple shine system because my is no foamy.