Applied Biochemists Gold-N-ClearApplied Biochemists Gold N Clear is a unique color changing clarifier that will quickly clear cloudy or hazy water conditions. Once added to your pool, Gold N Clear changes from gold to blue as it absorbs small particles that cause dull water conditions, and allows swimmers to safely use the pool immediately after application. Best of all, Gold N Clear is 100% biodegradable, non toxic, and contains no dyes or other additives, making it ideal for