Backflow Prevention
Backflow Prevention | Commercial Plumbing | Plumbing | Maryville
When you run a business in Maryville, every drop of water that flows through your pipes carries the reputation of your brand. HEP’s certified technicians safeguard that flow with state-of-the-art backflow prevention devices, yearly testing, and rapid repairs that keep contaminants out of drinking lines and your operation in full compliance. From restaurants on Broadway to industrial sites along Alcoa Highway, our team designs solutions that match your specific water pressures, fixture layouts, and inspection schedules—so you pass every audit the first time.
Because back-siphonage and back-pressure don’t clock out after business hours, we don’t either. Our 24/7 dispatch fleet arrives stocked with industry-approved assemblies, digital test kits, and the know-how to integrate them seamlessly into existing systems, minimizing downtime while maximizing safety. If you’re ready for worry-free commercial plumbing protection—and the peace of mind that only comes from working with Maryville’s most trusted name—call HEP today and stay confidently ahead of compliance.
FAQs
What is backflow and why is backflow prevention crucial for commercial properties in Maryville?
Backflow is the unwanted reversal of water flow that can allow contaminants—such as chemicals, fertilizers, or bacteria—from your building’s plumbing system to enter Maryville’s public water supply. Commercial sites typically have more complex plumbing, higher water pressures, and equipment (boilers, irrigation, chemical dispensers) that increase the risk of cross-connections. A properly installed and maintained backflow prevention assembly keeps potable water safe, protects customers and employees, and keeps you in compliance with city and state health regulations.
Are backflow prevention devices required by Maryville or Tennessee regulations for my business?
Yes. The Tennessee Department of Environment & Conservation (TDEC) and Maryville Water & Sewer mandate that every commercial facility with a potential cross-connection—restaurants, factories, medical offices, apartment complexes, etc.—install an approved backflow prevention assembly. Local ordinance also requires annual testing by a state-certified tester and submission of results to the city’s Cross-Connection Control Office. Failure to comply can lead to water service interruption and fines.
How often does my commercial backflow prevention assembly need to be tested and certified?
Maryville follows TDEC’s statewide rule: all commercial, industrial, and multi-family backflow devices must be tested at least once every 12 months. Certain high-hazard sites (e.g., chemical plants, medical facilities) may receive a notice requiring semi-annual testing. Tests must be performed by a Tennessee-licensed Backflow Prevention Assembly Tester, and paperwork must be filed with the city within 10 days of the test date. We provide reminders, on-site testing, and direct electronic filing to keep you on schedule.
What types of backflow prevention devices are commonly installed in commercial buildings and how do I know which one I need?
The three most common devices are the Reduced Pressure Zone Assembly (RPZ), Double Check Valve Assembly (DCVA), and Pressure Vacuum Breaker (PVB). • RPZ is required for high-hazard applications (chemicals, medical, food processing). • DCVA is suitable for low-to-moderate hazard indoor uses such as office domestic water or fire sprinkler mains with no additives. • PVB is often used on irrigation systems. During a site survey, our certified cross-connection specialist evaluates your water uses, pressure, and hazard level to specify the correct device that meets Maryville and TDEC code.
What should I expect during a professional backflow test and how long does it take?
Our technician first notifies your staff, locates the device, and shuts off downstream water to avoid disruption. Using a calibrated differential pressure gauge, we check each valve, relief port, and shutoff for proper operation and record pressure readings per ASSE 5010 procedures. A standard test on one assembly takes 20–30 minutes. If the device passes, we tag it, complete the test report, and file it with the city the same day. Water service is restored immediately after testing.
What happens if my backflow device fails the test, and how quickly can you repair or replace it?
If the assembly fails, our technician identifies the faulty internal parts—springs, seats, diaphragms, check valves—and provides a written estimate on site. Most repairs require only a rebuild kit and can be completed the same visit, followed by a retest at no extra trip charge. For severely corroded or obsolete units, we can replace the entire device, obtain city permits, and coordinate any required inspections within 24–48 hours to minimize downtime and keep your facility in compliance.