Backflow Prevention
Backflow Prevention | Commercial Plumbing | Plumbing | Whitwell
Safeguarding your water supply isn’t just good practice—it’s the law. HEP’s certified technicians install, test, and repair backflow prevention systems that stop contaminants from reversing into clean lines, protecting customers, employees, and your bottom line. From restaurants on Main Street to industrial sites near the river, our team responds quickly across Whitwell, documenting every step so you stay code-compliant and worry-free.
When you partner with HEP for commercial plumbing, you get 24/7 emergency support, transparent pricing, and a workmanship guarantee rooted in decades of local experience. Schedule a free on-site assessment today and see why Whitwell businesses trust HEP to keep their operations flowing in the right direction.
FAQs
What is backflow and why is prevention so important for commercial properties in Whitwell?
Backflow is the unwanted reversal of water flow that can draw contaminants—fertilizers, chemicals, cleaning agents—back into Whitwell’s public drinking-water system. Because commercial sites often have more complex plumbing networks and higher hazard connections (irrigation, fire-suppression, commercial kitchens, boilers, labs), the risk is amplified. A properly installed and maintained backflow prevention device keeps potable and non-potable water strictly separated, protecting employee health, avoiding costly shutdowns, and ensuring your business complies with state and local regulations.
Does Whitwell or the State of Tennessee require annual backflow testing for businesses?
Yes. The Tennessee Department of Environment & Conservation (TDEC) Rule 0400-45-01 requires that all testable backflow assemblies serving commercial or industrial facilities be inspected and certified at least once every 12 months by a state-licensed tester. Whitwell Water System adopts those rules and sends annual notices to affected businesses. Proof of passing test results must be filed with the city; failure to comply can result in service interruption and possible fines.
What kinds of backflow preventers are commonly installed in commercial plumbing systems?
The three most frequently used devices are: 1. Double Check Valve Assembly (DCVA) – protects against low- to medium-hazard conditions such as standard domestic water service. 2. Reduced Pressure Zone Assembly (RPZA) – offers the highest level of protection for high-hazard connections like chemical processing, commercial boilers, and medical facilities. 3. Pressure Vacuum Breaker (PVB) – typically installed on irrigation and sprinkler lines. Our technicians evaluate the degree of hazard, water pressure, and installation location to recommend the correct assembly for your facility.
How often should my backflow preventer be serviced and what does the testing process involve?
A testable assembly must be evaluated every 12 months at minimum, and immediately after installation, repair, relocation, or any plumbing alteration. During a test our certified specialist: • Isolates the device by shutting inlet/outlet valves. • Connects calibrated test gauges to check valve differential pressure and relief-valve discharge point. • Records readings to verify each check valve holds at least 1.0 psi (DCVA) or that the relief valve opens at the required differential (RPZA). • Inspects for leaks, corrosion, or worn parts and cleans or repairs as needed. • Completes the official TDEC test report and submits it to Whitwell Water Department on your behalf.
What warning signs indicate my backflow device may need repair or replacement?
• Visible water discharge from relief port when the system is not in use • Sudden drop in building water pressure • Inability to close shut-off valves fully • Corrosion, cracks, or broken test cocks on the assembly body • Failed annual test results or gauges that cannot hold required pressure If you notice any of these symptoms, schedule a service call immediately to avoid contamination and potential code violations.
How can your commercial plumbing team help my Whitwell business stay compliant and protected?
We provide turnkey backflow prevention services: site surveys, device selection, professional installation, certified annual testing, emergency repairs, and digital record keeping. Our testers hold current Tennessee Backflow Certification and submit all paperwork directly to Whitwell Water Department, saving you administrative time. We also offer preventive maintenance plans with automatic test reminders so you never miss a compliance deadline.