- HEP Plumbing
- Backflow Prevention

Backflow Prevention
Backflow Prevention | Commercial Plumbing | Plumbing | Alcoa
When an unexpected reversal of water flow threatens your Alcoa property, HEP’s certified experts step in with swift, code-compliant backflow prevention. From bustling eateries on Louisville Road to manufacturing plants near the airport, we inspect, repair, and install assemblies that keep contaminants out of the municipal supply, protect your patrons, and satisfy local inspectors. Every truck rolls out fully stocked, every technician is cross-trained, and every job is backed by 24/7 emergency response—all hallmarks of our decades-deep focus on commercial plumbing.
We understand that downtime costs money, so we work around your schedule, file the paperwork for you, and leave the site cleaner than we found it. Whether you need annual certification, an emergency valve swap, or a turnkey design for new construction, HEP delivers transparent pricing, watertight workmanship, and the peace of mind only a local team can provide. Discover why more Alcoa businesses remember our name whenever they think of commercial plumbing.
FAQs
What is backflow and why is prevention critical for Alcoa commercial properties?
Backflow is the unwanted reversal of water flow that can allow contaminants—such as chemicals, fertilizers, or bacteria—to enter the potable water supply. Commercial buildings in Alcoa often have complex plumbing with fire-sprinkler lines, boiler feeds, and chemical dispensers that create higher cross-connection risks than homes. Installing and maintaining approved backflow prevention assemblies protects your staff, customers, and the City of Alcoa’s municipal water system from contamination and helps you avoid costly fines or shutdowns.
Which backflow prevention devices are commonly required for businesses in Alcoa?
Local code (aligned with Tennessee Department of Environment & Conservation Rule 0400-45-01) generally mandates one of three assemblies: • Reduced Pressure Zone (RPZ) Assemblies – required for high-hazard connections like chemical vats and commercial boilers. • Double Check Valve Assemblies (DCVAs) – acceptable for low-hazard uses such as most domestic water service lines. • Pressure Vacuum Breakers (PVBs) – frequently installed on irrigation systems. Our technicians evaluate your plumbing layout, hazard level, and water pressure to recommend, size, and install the appropriate assembly that meets City of Alcoa Utilities specifications.
How often does a commercial backflow device need to be tested in Alcoa?
The City of Alcoa requires that every testable backflow assembly in a commercial setting be inspected and certified annually by a Tennessee-licensed Backflow Prevention Assembly Tester. Test results must be submitted to Alcoa Utilities within 10 days of the test date. Failing to complete the yearly test can lead to late fees, disconnection of water service, or revocation of your occupancy permit.
What happens during a professional backflow test and how long does it take?
A certified tester will shut off downstream water, connect a calibrated differential pressure gauge, and record readings for relief valves, check valves, and air inlets to ensure each component meets TDEC performance standards. Minor parts such as rubber seals or springs may be replaced on the spot if they fail. Most single-assembly tests take 20–40 minutes; large campuses with multiple devices can be completed the same day with advance scheduling. A detailed test report and compliance certificate are issued immediately upon passing.
Can my maintenance staff repair or replace a failed device themselves?
Routine, non-testable maintenance (e.g., flushing strainer screens) may be done in-house, but any repair, rebuild, or replacement that affects the hydraulic performance of the assembly must be performed by a licensed plumber holding a State of Tennessee L-limited or CMC-A mechanical license with backflow certification. All repaired or replaced assemblies must be retested and documented. DIY repairs that are not documented can invalidate your compliance record and void insurance coverage.
How can I ensure continuous compliance and avoid unexpected shutdowns?
1. Maintain an up-to-date inventory of every backflow assembly on your property, including location and serial numbers. 2. Schedule annual tests at least 30 days before the due date to allow time for any needed repairs. 3. Keep digital and hard copies of all test reports for at least three years as required by TDEC. 4. Train staff to recognize signs of backflow device failure (leaks, discharge from relief ports, sudden pressure loss). 5. Partner with a local Alcoa commercial plumbing specialist—like our team—who offers automated reminders, emergency repair service, and direct submission of test results to Alcoa Utilities so you never miss a deadline.