Clorox Pool&Spa Alkalinity Increaser protects your pH, protects your surfaces, and improves swimmer comfort by raising low alkalinity levels. Proper alkalinity levels in your pool help reduce pool maintenance. The granulated formula is simple to apply and dissolves fast. Test and balance your pool weekly to maintain clear water, longer lasting equipment, and comfortable swimming. Maintaining proper pH of 7. 2 to 7. 6 is not only easy, but can save your summer. If pH is too high, swimmers will suffer from red eyes and itchy skin, chlorine cannot disinfect water effectively and water becomes cloudy. If pH is too low, corrosion can ruin surfaces and equipment and water will burn swimmers' nostrils and eyes. Keep pool care easy by using the Clorox Pool app, the proper balancing product, and a regular maintenance routine.