What does green water in the pool mean in practice?
Slippery walls indicate algae, while clear green water after adding an oxidant may indicate copper or iron.
When does it matter?
Identifying the cause prevents unnecessary increases in chlorine dosage for a metal problem.
Which solutions are related to it?
The pH and disinfectant should be measured, the basin and filter should be cleaned, and if metals are suspected, their determination should be performed.