Frequently Asked Questions

Does the TF1 Omega filter block and restrict flow through the system?

No, the TF1 Omega Filter has been designed to ensure that even when it reaches a level of maximum collection, system water can still pass through the filter, short-circuiting the body, and flowing freely through the manifold.

What is the Fernox Express Inhibitor Test?

It is an easy to use dip strip that tests central heating systems for the correct concentration of inhibitor, to ensure that the system is fully protected and sludge and debris is prevented from forming and building up.

Can Power Cleaner F8 be left in the system prior to flushing?

Power Cleaner F8 can be dosed into the system up to a week before flushing. This high performance, strong cleaner is effective after one hour circulating under normal operating conditions.

Why do I need to test system water?

A core requirement under BS 7593:2019 is that central heating systems are tested annually, to help maintain system health and to identify and rectify any issues before they cause damage to the system. The Benchmark Commissioning Checklist further supports this practice to evidence the correct servicing and installation of boilers.

Is Power Cleaner F8 an environmentally friendly formulation?

Power Cleaner is phosphate, nitrate and nitrate-free and is developed to exceed all regulatory and legislative guidelines in regard to the environment impact of the formulation. It is compatible for use in mixed metal heating systems, including aluminium.

How does it work?

Simply dip the test strip into the system water and it will instantly change colour. By comparing the test strip to the colour chart label on the bottle, installers can assess whether the system water includes the correct concentration of inhibitor. A fully protected system will have inhibitor levels of

Does the Express Inhibitor Test check for all inhibitors?

Yes! the Express Inhibitor Test is a universal test that will check for the presence of all molybdate based inhibitors within the system water.

How quick is the test?

The results are instant!

What Fernox products can I use to re-dose the system?

If the dip test shows less than 100ppm, installers can immediately resolve the issue by adding a high-quality inhibitor such as Fernox Protector F1 or where a filter is fitted, Protector+ Filter Fluid. The test can be re-taken once the inhibitor has circulated to confirm the level has been met.

After adding inhibitor to the system how long should I wait before re-testing the system water?

With the initial dose, its key to make sure the system water is circulated properly so that the inhibitor is sufficiently mixed. Fernox recommend that you let the system circulate for at least 15 minutes. Also having the system on hot will help speed this up.

How can I keep a record of the pass / fail for each job?

It’s easy to keep track of test results with the free to download Fernox Water Test App, which installers can use to manage and evidence each test. Using the in-app camera, users take a picture of the test strip and select its colour to generate the pass or fail result.

Do I still need to perform a laboratory test?

BS 7593:2019 recommends that the inhibitor should either be re-dosed at 5-year intervals or, a more comprehensive laboratory test is conducted every five years to provide a more in-depth analysis, and where needed, establish targeted action to resolve issues and restore system efficiency. The Fernox Water Quality Test includes everything

What are the common practices that yield questionable results?

The Fernox Express Inhibitor Test is available from all major merchants and online plumbing retailers.

How much system water does Power Cleaner F8 treat?

Power Cleaner F8 is a concentrated formulation supplied in 500ml bottles, to reduce packaging waste. Just one bottle treats larger systems of 130 litres, 16 radiators or 250 sqm of underfloor systems and one dose is sufficient for cleaning the central heating systems of up to 97% of all UK

Do I need to neutralise Power Cleaner F8?

Power Cleaner F8 is pH neutral and is not acidic, therefore no neutralisation is needed. This saves time on-site.

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