Tips And TricksUpdated July 1, 2026
Local businesses in Highwood rely on clean, safe water for daily operations. Backflow prevention stays critical, especially with our municipal supply coming from Lake Michigan and connections to restaurants, offices, and service shops throughout the area. If a backflow device fails or goes untested, contaminated water can enter your pipes and threaten both public health and your own business compliance.
Why Backflow Prevention Matters for Businesses
In a region like Highwood, where many properties are connected by shared municipal lines and the water table can be high at times, backflow events aren't just theoretical. Cross-connections between potable and non-potable water can happen anywhere there's a pressure drop, think irrigation systems, fire sprinklers, or processing equipment tied into your plumbing. Illinois law requires annual testing of backflow assemblies for commercial properties, and failure puts your occupancy and business license at risk.
Common Triggers for Backflow in Highwood
Several factors in this area make commercial backflow prevention especially important. First, our older buildings, especially those dating back to the mid-20th century, sometimes have legacy plumbing runs and original connections that might not meet current code. We also see freeze-thaw cycles in winter that can affect water pressure and pipe integrity. Flat terrain and clay-heavy soil sometimes contribute to water pooling, which puts more stress on underground supply lines and increases cross-connection risks.
Backflow Testing Steps Our Crew Follows
- First, we locate all testable backflow assemblies. Most businesses have one at the main supply, though some need additional protection for irrigation, fire lines, or process equipment.
- We shut off the water and inspect the assembly for exterior corrosion, debris, or visible leaks, older valves may be at risk if not serviced regularly.
- Our team uses calibrated backflow test gauges to check for proper valve operation and pressure retention. Each test is recorded on official forms for municipal compliance.
- If we find a failed check valve or a leaking relief assembly, we disassemble and clean the internal parts, replacing worn springs or gaskets as needed.
- After repairs or maintenance, we retest to ensure the device fully passes before restoring water to your building.
Warning Signs Backflow Protection Is Failing
- Sudden changes in water pressure, especially after irrigation or sprinkler use.
- Discolored water or odd smells coming from fixtures, these can indicate back-siphonage from a cross-connection.
- Visible leaks or water pooling around your backflow assembly, particularly after winter freeze cycles or heavy rain.
- Expired test tags or missing reports, local code requires documentation for annual checks.
If you're seeing any of these issues, prompt testing helps avoid more severe problems. Our crew can also coordinate with you to schedule maintenance so it doesn't disrupt business hours.
How to Stay Compliant With Highwood Regulations
Annual backflow testing isn't optional for commercial buildings. The city keeps records, and you'll be required to show proof during inspections. If you've recently added irrigation, fire sprinklers, or made plumbing changes, those systems might also need new assemblies and certification. We make sure every required device is tested and documented, and can address pipe or valve issues with pipe repair and repiping if your connections are outdated or corroded.
If a failed test reveals bigger plumbing problems, our team handles leak detection and repair and offers quick response for emergency plumbing calls. We also handle tricky situations with sewer line services if you're dealing with old clay tile laterals or root intrusion around your property.
Practical Maintenance Tips for Business Owners
- Mark your backflow assemblies clearly, and keep access free from debris or landscaping.
- Set a calendar reminder for your required annual test, Highwood's reporting deadlines don't move.
- If your assembly is in a pit or vault, check after storms or thaw cycles to ensure no standing water collects, which speeds up corrosion.
- Remind your staff not to hang tools or hoses on the assembly, as this strains valves and joints.
- If you're planning renovations, coordinate with your plumber to review if new fixtures or lines require updated protection.
We also recommend keeping records of previous tests and repairs on hand. Business owners who keep up with their annual compliance save themselves headaches and avoid penalty fees.
Protect your staff, your customers, and your business reputation by keeping up with required backflow tests. If you need help scheduling annual certification or have questions about device upgrades, give our team a call at 224-524-1625. We know Highwood's plumbing quirks and help local businesses stay safe and code-compliant.