The system is on automatic start as the vehicle approaches and is on a stop timer, adjustable depending on your requirements. All the water and debris flows from the wash bay into the 13,000 gallon recycling tank, where the solids settle to the bottom and the clean water is baffled to the pump section where it is reused.
Tire wash systems greatly reduce track out of mud on highways and roads. Using a tire wash can be a better option than a sweeper, as you are preventing the problem from happening in the first instance. Good for your neighbors!