If the saturation index reading is +0.2, how is the pool water classified?

A saturation index reading of +0.2 indicates that the pool water is classified as balanced. The saturation index is a measure of the pool water's potential to either dissolve or deposit calcium carbonate. The range typically classifies water as balanced (close to zero), corrosive (negative values), or scaling (positive values). A reading of +0.2 shows that the water has a slight tendency to scale, which is still within the balanced range, as it is not significantly above zero.

When water is in a balanced state, it means that the water is neither overly corrosive nor excessively scaling, leading to a stable environment for both pool surfaces and equipment. This ensures that the water is comfortable for swimmers and helps in extending the lifespan of the pool infrastructure.