The phrase describes a common problem encountered by pool owners: the water has turned green, indicating an imbalance or contamination. This situation typically signals the presence of algae, which thrives in improperly maintained water conditions. Determining the appropriate course of action to remedy this issue is crucial for restoring water clarity and safety.
Addressing discolored pool water is important for several reasons. Algae growth can create unsanitary swimming conditions, potentially leading to skin irritation or other health concerns. Furthermore, neglecting the issue can lead to staining of the pool surface and damage to filtration and circulation equipment. Historically, various chemical and mechanical solutions have been employed to combat algae blooms, evolving from basic chlorination to more sophisticated oxidation and filtration techniques.