CORRECTS ACIDIC POOL WATER QUICKLY!. The active ingredient in our pH Increaser is soda ash or sodium carbonate. Corrects acidic water conditions. Slows the rapid dissipation of chlorine caused by acidic water. Reduces eye irritation by reducing acidity. Reduces corrosion of pool equipment and etching of plaster pool walls. Our pool pH Increaser comes in granular form. As the level of your pool's pH increases into the ideal range, your pool water will become safer and more pleasant to swim in. While dosage rates will vary depending upon your pool's volume and current pH level, the initial dosage of our pool pH Increaser is 1 pound per 10,000 gallons. Available in a variety of different quantities. Available at great prices and for excellent value.