Backflow certification Process

---

Certifying a water backflow prevention device involves a systematic process to ensure the device is functioning correctly and protecting the potable water supply from contamination. Here is a detailed overview of the steps involved in the certification process:

• Notification: Inform building occupants and relevant personnel about the upcoming inspection and any necessary water shutdowns.
• Documentation Review: Gather and review previous inspection reports, maintenance records, and manufacturer’s specifications for the backflow prevention device.

• Examine the Device: Inspect the physical condition of the backflow prevention device for any signs of wear, damage, corrosion, or tampering.
• Check Installation: Ensure the device is installed correctly according to manufacturer specifications and local regulations.
• Verify Accessibility: Confirm that the device is accessible for testing, maintenance, and emergency operations.

• Isolate the Device: Shut off the water supply to the device and relieve any pressure within the system to prepare for testing.
• Attach Test Equipment: Connect specialized test gauges and equipment to the test cocks on the backflow prevention device.
• Conduct Tests: Perform a series of tests to check the functionality of different components of the device. This typically includes:
  • Check Valves: Test the pressure differential across the check valves to ensure they close tightly and prevent backflow.
  • Relief Valve (for RPZ Devices): Test the relief valve to ensure it opens at the correct pressure to prevent backflow.
  • Shutoff Valves: Verify that the shutoff valves upstream and downstream of the device are functioning properly.

• Evaluate Results: Analyze the test results to determine if the device meets the required performance standards. Any deviations from expected results indicate potential issues.
• Record Findings: Document the test results, including any observed issues, test procedures, and measurements taken during the inspection.
• Certification Report: Prepare a detailed certification report summarizing the inspection and test results. Include recommendations for any necessary repairs or replacements.

• Address Issues: If any issues are identified during testing, perform necessary maintenance or repairs. This may involve cleaning, adjusting, or replacing components of the backflow prevention device.
• Re-Test: After performing repairs, conduct a re-test to ensure the device now meets all certification standards.

• Certification Approval: Once the device passes all tests and inspections, issue a certification indicating the backflow prevention device is functioning correctly and complies with regulations.
• Tagging: Affix a certification tag or label to the device indicating the date of certification and the next due date for testing.
• Submission of Documentation: Submit the certification report and any required documentation to local regulatory authorities, water suppliers, or other relevant entities.

• Maintain Records: Keep detailed records of all tests, inspections, maintenance, and certifications for future reference and compliance audits.
• Schedule Next Inspection: Schedule the next annual inspection and certification to ensure ongoing compliance and functionality of the backflow prevention device.

• Inform Stakeholders: Communicate the results of the certification process to building management and relevant stakeholders.
• Training: Provide training to building maintenance staff on how to identify potential issues and perform basic checks on the backflow prevention device between annual certifications.

By following these steps, building owners and managers can ensure their water backflow prevention devices are certified correctly, protecting the potable water supply from contamination and complying with regulatory requirements.