Allow the solution to sit for about 15-20 minutes to penetrate the algae and loosen its grip on the surface.
After the allotted time has passed, use a stiff brush or scrubbing pad to gently scrub the stones, working in circular motions to lift and remove the loosened algae.
For stubborn areas, you may need to repeat the process or allow the solution to sit for a longer period before scrubbing.
Once the algae has been removed, rinse the stones thoroughly with clean water to wash away any remaining residue.
Finally, allow the stones to dry completely before walking or placing objects on them.
By using this simple and natural remedy, you can effectively remove green algae from stones without resorting to harsh chemicals or damaging the environment.
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