GLB Supersonic 5lb.

Is your pool water green, cloudy, or struggling to stay clear — even after shocking? The GLB Supersonic 5 lb Pool Shock delivers powerful, fast-acting chlorine treatment in a bulk size designed to restore and maintain crystal-clear water. Whether you’re opening your pool, battling algae, or correcting heavy contamination, Supersonic works quickly to eliminate organic waste, kill algae, and restore sanitizer performance. Solves Major Pool Water Problems When water conditions are severe, small treatments aren’t enough. Use Supersonic to fix: Green or swampy pool water Severe algae blooms Cloudy or hazy water Chlorine demand issues Pool opening contamination Heavy swimmer load waste It oxidizes contaminants fast so your sanitizer can work effectively again. Fast-Dissolving Supersonic Performance Engineered for rapid action, this powerful chlorine shock: Dissolves quickly Kills algae & bacteria Breaks down organic debris Restores chlorine efficiency Improves f