Request A Test Scheduling Your Annual Backflow Preventer TestSimply complete this form and click the submit button to send us your request. Your name: Your email: Your phone number: Billing address: Service address: Additional information (optional): Acknowledgement (please check box): I acknowledge that I will receive an invoice via email for my backflow testing. Upon timely payment, a technician will be scheduled to perform the backflow test within my designated testing due period. Be sure to complete all of the form fields before submitting your backflow testing request.