If you have a sunny day, do nothing. Seriously. Direct sunlight breaks down chlorine naturally—a process called photolysis. It’s basically nature’s “undo” button.
Just take off the pool cover, let the sun bake the water for 4 to 6 hours, and test again. It feels weird to ignore the problem, doesn’t it? But it works.
If you’re impatient, add a non-stabilized chlorine reducer (sodium thiosulfate). But honestly? Let the sun do the work while you drink an iced tea. Your pool doesn’t need a chemical intervention every time.
