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Applying Fernox Superconcentrate

Why use Fernox Superconcentrate?

The Fernox Superconcentrate range uses a patented injection system to add treatment gels directly into a system via radiator vents. This removes the need to drain down systems saving both time and money.

What should be done?

Make sure the system is turned off and allow radiators to cool down. Select a radiator and shut both the wheel-head and lockshield valves. If a thermostatic radiator valve (TRV) is fitted, close it by turning it to the minimum setting.

Having removed the air vent pin using a cloth to absorb any escaping water, screw the Fernox Superconcentrate injection nozzle into the air vent after cutting to the right diameter to fit tightly. Remove the foil from the base of the cartridge and cut off the seal above the thread at the top using a sharp knife. Fit the tube to the adaptor and screw onto the cartridge, placing the cartridge into a mastic gun. Attach the other end of the tube onto the nozzle in the radiator.

Re-open the wheel-head valve (or TRV) and inject all the Fernox Superconcentrate into the radiator with the cartridge gun. Then close the wheel-head valve (or TRV), remove the injector nozzle and tighten the air vent pin. Open both radiator valves, turn on the central heating system and let it run for 15 minutes to allow the Superconcentrate to disperse around the system.