Pool Maintenance What kills algae the fastest in a pool? February 4, 2026 by Tanp | Leave a Comment To effectively kill algae in a pool, using a pool shock treatment is the fastest and most efficient method. By rapidly increasing the chlorine level, pool shock eliminates algae growth and restores water clarity. For optimal results, follow up with regular maintenance and proper chemical balance. What Is the Fastest Way to Kill Algae in […] Read more ยป