System Water Test

Fill the tube with a 50 ml sample of system water taken from either the boiler or a radiator. Look down the tube and focus on the black and yellow target at the base of the tube. Depending on the cleanliness of water, there are 4 recommended treatment options;

1. The target is clearly visible and the system is adequately inhibited (with the boiler displaying a retreatment label) – No action required
2. The target is clearly visible but the system may not be adequately inhibitor (no retreatment label is displayed on the boiler) – Dose with Fernox Protector F1
3. The target is visible but blurred indicating contaminants are present in the system water – Fit a Fernox TF1 Filter and dose with Fernox Protector+ Filter Fluid
4. The target is not visible indicating a heavily sludged and dirty system due to corrosion and limescale formation – Clean the system with Fernox F3 Cleaner or Fernox Power Cleaner F8, fit a Fernox Filter and dose with Fernox Protector+ Filter Fluid