One bottle of Fernox Protector F1 or Protector + Filter Fluid will treat a typical system of ten single panel radiators – double panel radiators, count as two radiators.
If the calculated dose rate is in between pack sizes, dose to the higher figure.
One litre of water weighs 1 kg, therefore 2 kg of DS40 System Cleaner per 100 litres of system volume will make a 2% solution.
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.
Protector + Filter Fluid should only be used in combination with an in-line system filter, which can trap and contain the debris in the system before safe removal. It is ideal for use in circumstances where a system has previously been cleaned or flushed but subsequently has not been adequately protected so further corrosion has taken place. It is also
