Once a driver reaches his/her spray zone, the spray motor on the back of the truck stays running the entire time he is traveling. So some of the time the driver could just be moving from one street to the other and not actually spraying. However, when the driver is spraying the top lights should be engaged and a fine mist can seen coming from the sprayer.
Once spraying begins, our targeted spray speed is 15mph, although drivers can effectively spray between 5-20 mph. This range is possible because the trucks are equipped with computerized variable flow metering systems. These systems increase or decrease flow rates based on the speed of travel, assuring the proper amount of spray is being dispensed. These new systems have greatly increased the efficiency of the operation, assuring proper application, as well as saving time and money.