Pink algae is generally linked to fungus building up beneath the coating.

Its presence is related to:

• The presence of humidity beneath the coating

• A lack of disinfectant beneath the coating

• Imbalanced water

Here is the treatment solution for eliminating this problem:

• Check the stabilising agent content level

• Lower the pH to 6.5: Use Acti pH minus powder

• Shock treatment: Acti HP granules 150g/10m³

• Scrub the traces

• Métalfix: 1kg/25m³

• Leave to act for 24 hours

• Balance the water in accordance with the recommendations of the Actisoft software (alkalinity, hardness, pH)