Algae: Add algaecide Aqua Klean® (recommended initial dose: 0.25 liters per 10,000 gallons of water ), pH adjustment , apply superchlorination treatment, brush sides and bottom, then filter.

Low pH, Corrosion, Eye Irritation and Skin:  Add Aqua Klean® neutraliser to raise the pH.

High pH, High Total Alkalinity, Scale: Add muriatic acid concentrate.

Turbid Water: Add Aqua Klean® Clarifier and filter the water properly. Initial recommended dose: 1.5 kilos per 10,000 gallons of water.

Dirty Dark Ring and Fat in The Water Level:  Brush the walls and floor with Tile Cleaner Claudette®.

Colored Water: Adjust pH with pH regulators Aqua Klean®.