Case Study: Help – my pool turned brown!

Orange PoolIf you have well water what probably happened was the chlorine caused the pH to increase just enough to cause the water to change color (high pH = flourescent/lime green) – and then additional shock pushed any dissolved metals out of solution (iron = dull green/brown).

What I would do would be to add pH- to bring the alkalinity and pH down, followed by FerriTabs to take the metal out of the water. *FerriTabs work best with Sand filters, though there is also a special formulation for cartridge or de filters.