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.

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.

What is citrate action?

Citrate action is a term used to describe the powerful chelating effect that the citrate ion has on metal ions. This strong binding effect means that corrosion debris is lifted and transported out of the system during a system clean.

Is Power Cleaner F8 acidic?

No. Whilst Power Cleaner F8 is formulated with citric acid, this is neutralised in-situ to form the neutral citrate species which has such an effective cleaning action.

Should I use Cleaner F3 or Power Cleaner F8?

You will get a very good system clean with both products. However, if the system is especially dirty it is recommended to use the stronger Power Cleaner F8 which will have an increased dispersion effect, even at low temperatures.

Can Power Cleaner F8 be disposed to foul drain?

Power Cleaner F8 is a pH neutral cleaner which has low environmental impact and can be safely disposed via foul drain.

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.

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 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.

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.

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.

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

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