Why haven’t I received my results within 72 hours?
Check the app or web portal for updates. If there’s no status update, verify that the samples were posted correctly and contact Fernox support if needed.
Can I get a replacement kit if I lose or damage the one provided?
Yes, contact Fernox to request a replacement kit.
What if my results indicate an unexpected issue?
Consult the recommendations provided in the results PDF or contact a professional for further analysis and action.
How quick is the Instant System Test?
The Instant System Test is designed to provide instant results. The results and PDF certificate are generated immediately upon submission.
How do I start using the Instant System Test?
After downloading the Fernox App and completing registration, you can start adding a new “Instant System Test“. For a detailed, step-by-step guide on how to use the Instant System Test, please refer to this guide
Which tests are included in the Instant System Test?
The test includes: Turbidity Test Express Inhibitor Test Corrosion Test pH Test For a detailed, step-by-step guide on how to use the Instant System Test, please refer to this guide.
What do I receive after completing the test?
You will receive a PDF certificate detailing the results, recommendations, and conclusions, sent to your email and stored in your account.
What is the Instant System Test?
The Instant System Test is a quick and convenient method of evaluating system water quality onsite. It combines four tests: Turbidity Test, Express Inhibitor Test, Corrosion Test, and pH Test. For a detailed, step-by-step guide on how to use the Instant System Test, please refer to this guide.
Where can I buy the Fernox Express Inhibitor Test?
The Fernox Express Inhibitor Test is available from all major merchants and online plumbing retailers. For a more convenient purchase, you can use the Stockist Finder on our website to locate a retailer near you.
What should I do if the app crashes or freezes during a test?
Restart the app and re-enter the test details. If the problem persists, contact Fernox support.



















