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.
What can cause knocking noises in boilers?
Boiler noise results from localised boiling of the water. This happens when the inside surface of the boiler becomes too hot due to scale or baked- on sludge deposits. All systems over five years can suffer noise and new boilers in old systems are especially vulnerable. Add Fernox Boiler Noise Silencer F2 and / or de-scale the boiler with Fernox
