The truck, van or bus is parked in the wash bay and the Heavy Wash Rollover machine moves over the vehicle performing the selected program and providing a thorough wash. These machines are modular and can be configured with multiple options to suit individual client’s washing needs such as Foamy Chemical Prewash, automatic high pressure wash and wax rinse for a high shine finish. These machines are modular and can be configured with multiple options to suit individual client’s washing needs such as Foamy Chemical Prewash, automatic high pressure wash and wax rinse for a high shine finish.’