Annual Backflow testing will be done June-Septemeber.  There is no need to call and make an appointment.  Once you pay for the service, your all set.  You do not need to be home as everything that the Technician needs is outside of the property.  Northway Irrigation Certified and Licensed Technicians will come out to your property and Test your backflow and file all of the necessary paper with the city in which you live.