Green Water Treatment
If your pool has taken on a shade of green and looks murky, then you will require specialised algae treatment to restore your pool water condition.
Before treating your pool, it is recommended to lower your water's pH using Dry Acid. High pH and high total alkalinity can also cause cloudy water
Algaecide and Granular Chlorine
To treat green water problems you will need to use chlorine and algaecide. The algaecide will work to break down the algae's protective coating while the chlorine will kill the algae.
From there, you should add a pool flocculant to the water. This will clump the suspended particles so they fall to the pool floor, to allow you to vacuum the contaminated particles to waste.