Signs Your Backflow Device May Be Failing
Backflow prevention devices are a vital part of keeping our drinking water safe. They stop contaminated water from flowing back into your home or business water supply. Like any mechanical device, they can wear down over time — and sometimes the problems aren’t obvious.
In this blog, we’ll go through the most common signs that your backflow device may be failing and explain what to do if you notice any issues. Knowing the signs early can save you from unexpected problems and ensure you remain compliant with local regulations.
What Is a Backflow Device Designed to Do?
Backflow devices, also called backflow prevention valves, are installed on water systems to prevent contaminated water from reversing into the main supply. You’ll often find them in:
- Commercial properties like cafés, restaurants, and medical clinics
- Residential homes with irrigation or fire systems
- Buildings with complex plumbing or water features
Even if your device looks fine from the outside, it could still be failing internally. That’s why professional backflow testing is so important. Learn more about our backflow testing services in Geelong & Torquay.
Common Signs Your Backflow Device May Be Failing
While some failures are obvious, others develop slowly and are harder to spot. Here are the signs to watch for:
Visible Corrosion or Leaks
Over time, moisture and corrosion can appear around the valve fittings or test points. In coastal areas like Torquay, devices can corrode faster due to the salt air. Even small leaks or drips should be inspected — what looks minor on the surface can indicate a bigger internal problem.
Changes in Water Pressure
A sudden drop in water pressure or inconsistent flow can signal a failing backflow device. This may happen after irrigation use, fire system activation, or plumbing adjustments. If you notice these changes, it’s time to have your device tested.
Age of the Device
Backflow devices don’t last forever. Seals and internal springs can wear out over time, particularly if the device hasn’t been tested regularly. Older devices are much more likely to fail, even if they appear fine externally.
Failed or Missed Previous Tests
If your device has failed a test before, or testing has been skipped for a few years, the likelihood of problems increases. Even a device that passed last year can start failing, so staying on top of testing is crucial.
Renovations or Plumbing Changes
New irrigation systems, additional water features, or upgrades to fire protection can affect your existing backflow device. Any plumbing modifications can put extra pressure on the valve or change flow patterns, potentially causing failure.
Why Backflow Issues Aren’t Always Obvious
Many people assume that if there’s no visible leak or problem, their backflow device must be fine. Unfortunately, internal components can fail without any external signs. A device might appear functional, but during a test, it could fail to prevent contaminated water from entering your system. Regular testing is the only way to be completely sure your water supply is protected.
What to Do If You Suspect a Problem
If you notice any of the signs above, it’s important not to ignore them. Here’s what to do:
- Don’t try to fix it yourself. Backflow devices are technical and require a licensed plumber.
- Avoid using the water system in a way that might worsen the issue.
- Book a professional backflow test. A licensed plumber will check the device and provide a report if required.
- Address any issues early. Fixing problems promptly helps you stay compliant and avoids potential health risks.
If you’re unsure whether your backflow device is working correctly, book a licensed backflow test with Tomlinson Plumbing today. We service Geelong, Torquay, Ocean Grove, Barwon Heads & surrounding areas and provide full testing and reporting.
Professional Backflow Testing in Geelong & Torquay
At Tomlinson Plumbing, we’re experienced in testing and servicing all types of backflow devices. We ensure your device meets all compliance requirements, keeps your water safe, and prevents potential contamination.
Don’t wait until a problem becomes urgent — regular testing is the best way to protect your property and your community. Contact us to schedule your backflow test today and have peace of mind knowing your water system is in safe hands.