Cloudy water: Can be caused by high calcium hardness, poor filtration, or other chemical imbalances.
Strong "chlorine" smell: This isn't from chlorine itself, but from chloramines, which are formed when chlorine reacts with contaminants like sweat, urine, and oils. It indicates a need for more chlorine and proper shocking.
Algae growth: Green, yellow, or black patches in the pool mean there is insufficient sanitization or circulation. Lots of hair in pool
Irritated eyes and skin: Often caused by high chloramine levels, not high free chlorine, indicating the water is not properly balanced.