The Yellow Stuff Algaecide 2 lb Bottle

The Yellow Stuff™ Algaecide is a powerful, fast-acting treatment formulated to eliminate mustard algae and prevent future outbreaks in all types of swimming pools. Whether you're treating a breakout or maintaining crystal-clear water, The Yellow Stuff delivers reliable results without foaming or damaging your pool surface. Compatible with all major pool sanitizing systems—including chlorine, bromine, salt, and ozone—this versatile formula is safe for use on plaster, vinyl, fiberglass, and all other pool finishes. It targets stubborn yellow/mustard algae, which often resists standard chlorine treatments, and works quickly to restore clear, algae-free water. Use The Yellow Stuff as part of a preventative maintenance program to keep algae at bay or for aggressive algae treatment when needed. After application, swimmers can typically resume swimming within just a few hours, making it convenient for residential and commercial pools alike. Key Benefits: Quickly removes mustard/yellow algae