GLB Chlorinating Granular - 1 lb. Overview The GLB Chlorinating Granular is a great and easy way to sanitizer your pools water. Built with a stabilizer this product helps product the Chlorine from sunlight. The GLB Chlorinating Granular is a quick dissolving product. What’s in the Box 1 x GLB Chlorinating Granular - 1 lb. Ingredients Sodium Dichloro-s-Triazinetrione: 99% Inert Ingredients: 1% Available Chlorine: 56% Directions Make sure pool water pH range is between 7.2 - 7.8 with alkalinity at a minimum of 100 ppm. Follow the stabilization instructions on label. 30 ppm of stabilizer is needed. After regular use of GLB Chlorinating Granular will provide any make up stabilizer. Shock treat your pool water using 16oz of Chlorine Granular per 10,000 gallons of water. Proper chlorine level should read between 1 to 1.5 ppm. Brand GLB®