Backflow Devices
Backflow Devices | Commercial Plumbing | Plumbing | Dunlap
Protecting your potable water and keeping your operation up to code is easier when you have HEP’s certified backflow specialists in your corner. From restaurants on Coops Creek to warehouse hubs off Highway 28, we install, test, and repair RPZs, double-check valves, and pressure vacuum breakers that stop contaminated water from re-entering the city supply. Our technicians arrive in fully stocked trucks, complete most jobs in a single visit, and file all required reports with Dunlap utilities—so you stay compliant without lifting a finger.
As a locally grown team that’s on call 24/7, we understand that downtime costs money. That’s why we pair responsive scheduling with transparent pricing, giving you the same neighborly service our residential customers love, scaled for the demands of commercial plumbing systems. Whether you’re outfitting a new build or upgrading legacy devices, count on HEP to keep your business flowing forward.
FAQs
What is a backflow prevention device and why is it required for commercial properties in Dunlap?
A backflow prevention device is a mechanical assembly installed on your potable-water service line to stop contaminated water from reversing direction and entering the public water supply. Dunlap, like most Illinois municipalities, follows IEPA and local cross-connection control regulations that mandate approved backflow assemblies on commercial, industrial, and multi-family properties. Restaurants, manufacturing plants, medical facilities, and any site with fire-sprinkler or irrigation systems must have a properly sized and tested backflow device to protect public health and to stay in compliance with city ordinances and insurance requirements.
How often does my commercial backflow assembly need to be tested in Dunlap?
Dunlap enforces an annual testing schedule for all backflow prevention assemblies on commercial properties. A state-licensed cross-connection control tester must inspect, test, and certify each device every 12 months, and the results must be submitted to the village’s water department. Some high-hazard locations—such as laboratories or facilities that handle chemicals—may be required to test devices twice a year. Failure to provide timely test reports can lead to fines or water-service interruption.
What types of backflow prevention devices are typically used in commercial settings?
1. Reduced Pressure Zone (RPZ) Assemblies – Required for high-hazard applications such as chemical processing, medical facilities, and boiler feeds. 2. Double Check Valve Assemblies (DCVA) – Suitable for low-hazard uses like dedicated fire-sprinkler lines without chemicals. 3. Pressure Vacuum Breakers (PVB) – Common on irrigation systems where continuous pressure is present. 4. Spill-Resistant Vacuum Breakers (SVB) – A variation of PVB used where water discharge must be minimized. Our technicians evaluate your water service, hazard level, and code requirements to recommend the right device.
What are the warning signs that my backflow device may be failing?
• Visible leaks, drips, or pooling water around the backflow assembly • Sudden drops in building water pressure or frequent pressure fluctuations • Unusual tastes, odors, or discoloration in potable water lines • Water continuously discharging from the relief port on an RPZ • Failed annual test results or an inability to maintain proper gauge readings If you notice any of these issues, shut off the affected line if possible and call a certified backflow specialist immediately to prevent contamination.
What happens during a professional backflow test and how long does it take?
A licensed tester will: 1) shut off downstream water, 2) connect calibrated test gauges to each test cock, 3) measure check-valve closure pressure and relief-valve opening point, and 4) verify that the assembly meets factory and code specifications. Minor adjustments or cleaning of internal parts can often be done on the spot. For a single RPZ or DCVA, the procedure typically takes 20–40 minutes, though large facilities with multiple devices may require several hours. Upon completion, you receive a signed test report that our office files electronically with Dunlap’s water department.
How can your commercial plumbing team help with backflow compliance in Dunlap?
We offer turnkey backflow services: device sizing and installation, annual or semi-annual testing, emergency repairs, full rebuilds, and replacement of outdated assemblies. Our state-certified testers handle all paperwork, including electronic submission of test results to Dunlap authorities. We also provide reminder notifications before your renewal date, onsite consultations to address cross-connection concerns, and 24/7 emergency response to minimize downtime for your business.