The BackFlow Problem
Backflow involves the unwanted reversal of water flow in a plumbing system, which can introduce contaminants like chemicals, fertilizers, or waste into your clean water supply. This typically occurs during sudden pressure changes, such as a water main break or high-demand firefighting efforts, creating a siphon effect that pulls non-potable water backward.
Watch for signs of compromised water quality, including unusual odors, discoloration, or visible particles in your tap water. Protecting your property requires a fail-safe mechanical barrier—a backflow preventer—that ensures flow only moves in one direction, keeping your community and family safe from cross-connection hazards.

Device Expertise

Pressure Vacuum Breakers (PVB)
Commonly used for irrigation systems, PVBs are designed to prevent back-siphonage where there is no back-pressure.

Reduced Pressure Zone (RPZ)
The gold standard for high-hazard protection, RPZs offer maximum safety for potable water supplies against all types of contamination.

Double Check Valve (DCVA)
Ideal for low-hazard scenarios like fire sprinkler systems, these devices prevent both back-pressure and back-siphonage effectively.
Testing & Certification Process
We follow a rigorous multi-step inspection protocol to ensure your property remains protected and compliant with all local water safety regulations.
01
Visual Inspection
Our certified technicians perform a comprehensive external audit, checking for corrosion, leaks, or signs of mechanical fatigue in the assembly.
02
Pressure Testing
Using calibrated differential gauges, we measure check valve performance to ensure the device maintains the required pressure thresholds per code.
03
Records
We record all test results, including asset serial numbers and technician signatures, creating a detailed service record for city filing.
04
Certification
Upon passing, we submit all paperwork directly to JEA or your local municipality and provide you with a digital copy for your records.

Safety First
Stay Compliant
Jacksonville health regulations mandate annual testing for all commercial backflow prevention devices. NEFL Contractors ensures your systems meet all local safety codes, protecting our city's water supply while keeping your business fully certified and operational.
MANDATORY: ANNUAL RE-CERTIFICATION REQUIRED BY FLORIDA CODES
Backflow Certification in Jacksonville FL

NEFL Contractors provides comprehensive backflow system management for Jacksonville properties. Our master-certified technicians handle everything from new device installation and system design to emergency repairs and routine maintenance. We ensure your domestic water supply remains protected with industrial-grade hardware and precision engineering.
Need a Certified Test?
Contact NEFL Contractors today to schedule your mandatory annual backflow assembly testing. Our certified experts are standing by to ensure your property stays safe and compliant with Jacksonville regulations.


