- HEP Plumbing
- Backflow Testing

Backflow Testing
Backflow Testing | Commercial Plumbing | Plumbing | Lenoir City
When it comes to commercial plumbing in Lenoir City, HEP’s certified backflow specialists are the guardians of your water supply. We perform meticulous testing, calibration, and documentation that keep you compliant with state regulations and local codes, all while preventing contaminants from sneaking into your potable lines. From restaurants on Broadway to manufacturing plants near the lake, our technicians arrive equipped with state-of-the-art gauges, a deep knowledge of cross-connection control, and the kind of courtesy that makes scheduling annual tests feel effortless.
Choose HEP and you get more than a stamped report—you gain a proactive partner. We track your renewal dates, send friendly reminders, and stand ready 24/7 to repair or replace assemblies before they interrupt daily operations. It’s all part of our promise to keep your business flowing smoothly, protect your reputation, and let you focus on what you do best while we handle the pressure behind the scenes.
FAQs
What is backflow and why is testing required for commercial properties in Lenoir City?
Backflow is the unwanted reversal of water flow that can allow contaminants—from fertilizers to industrial chemicals—to enter the public drinking-water supply. Because commercial buildings often have complex plumbing systems, pressurized equipment, and potential cross-connections, the risk of contamination is higher than in residential settings. Lenoir City Utilities Board (LCUB) and the Tennessee Department of Environment & Conservation (TDEC) require all businesses to install and maintain approved backflow prevention assemblies and to have them tested annually by a state-certified tester. Regular testing verifies that check valves, relief valves, and shutoff valves are operating correctly, ensuring the safety of customers, employees, and the wider community.
How often does my business need to have its backflow prevention assembly tested?
LCUB’s Cross-Connection Control Program follows TDEC Rule 0400-45-01-.17, which mandates that all commercial, industrial, and institutional facilities have their backflow prevention devices tested at least once every 12 months. Certain high-hazard sites—such as medical facilities, chemical plants, or properties with dedicated fire-suppression systems—may be required to test more frequently (every 6 months) if the authority deems it necessary. Tests must be documented on official TDEC forms and submitted to LCUB within 10 days of completion to remain in compliance.
What does your commercial backflow testing service include?
1. Pre-Visit Coordination – We gather the assembly serial numbers, locations, and service times that least disrupt your operations. 2. On-Site Inspection – A Tennessee-licensed backflow technician arrives with calibrated, state-approved differential gauges. We visually inspect for leaks, corrosion, or code violations. 3. Functional Testing – We isolate the device, record line pressure, and take differential pressure readings across each check and relief valve as required by ASSE and USC-FCCCHR standards. 4. Minor Repairs – If a test fails due to clogged check seats or worn rubber parts, we can perform immediate maintenance (with your approval) to restore compliance. 5. Documentation – You receive a detailed test report, gauge calibration certificate, and any repair records. We file all paperwork directly with LCUB so you don’t have to. 6. Compliance Reminder – Our database tracks your renewal date and sends courtesy reminders 30 to 45 days before the next test is due.
Are there specific Lenoir City or Tennessee regulations my company must comply with?
Yes. Key regulations include: • TDEC Rule 0400-45-01-.17 Cross-Connection Control – Establishes statewide requirements for prevention, installation standards, and annual testing. • Lenoir City Utilities Board Ordinance 10-120 – Gives LCUB authority to enforce the state rule, discontinue service for non-compliance, and assess penalties. • NFPA 25 for fire-line backflow devices – Requires periodic inspection, testing, and maintenance of backflow preventers on fire sprinkler systems. • ASSE/ANSI 1015, 1013, 1047 standards – Define acceptable devices (e.g., RP, DCVA, PVB) and performance criteria. Failure to comply can lead to water service termination and potential fines. Using a certified tester who understands local ordinances ensures your facility remains in good standing.
How long does the testing process take and will it disrupt my operations?
A standard Reduced Pressure Principle (RP) or Double Check Valve Assembly (DCVA) test typically takes 20–30 minutes per device. Preparatory shutdowns and repressurization add another 10–15 minutes. For most businesses, the water interruption lasts less than an hour and can often be scheduled before opening, during low-production periods, or after regular hours. For facilities that cannot tolerate any downtime (e.g., restaurants during lunch service), we can install temporary bypass lines or stage testing to one section at a time to keep you operational.
What are the typical costs and what factors influence the price of a backflow test?
In Lenoir City, commercial backflow testing usually ranges from $85 to $150 per device. The final cost depends on: • Size of the device (¾" vs. 6") – larger valves take longer to test and may require two technicians. • Device type – RP assemblies are more complex to test than DCVAs. • Quantity – Multiple devices at the same site qualify for volume discounts. • Accessibility – Devices in pits, ceilings, or secured areas require additional labor and safety measures. • Repairs or parts – Replacement of check springs, rubber seals, or ball valves is billed separately but performed on the spot whenever possible. Our upfront quotes list testing, documentation, and filing fees so there are no surprises. We also offer multi-year service agreements that lock in pricing and guarantee priority scheduling.