5 Steps to Fix a Green Pool After Rain

Test and adjust pH first Test the pH and bring it to 7.2-7.4 so the chlorine works effectively.

Use liquid chlorine, not granular Liquid chlorine works faster than granular shock. Triple the recommended amount for your pool size.

Brush every surface immediately Brush walls, floor, and steps to break up algae hiding spots. This is essential for the shock to work.

Run the filter continuously Run the filter 24/7 and backwash when the pressure rises. This clears dead algae faster.

Clarify and vacuum to waste After the green fades to cloudy blue, use a flocculant or clarifier to settle dead algae, then vacuum to waste.