The Haviland Alkalinity Plus is a granular product that is designed to safely raise the alkalinity levels in your pool water. Regular use of this product will stop and prevent the corrosion of your pool’s surfaces and equipment, while also keeping your pH locked in and water clear. Whenever there is an alkalinity imbalance pool water can get very cloudy, so keeping it balanced will keep your water clearer. This product is compatible with all systems including bromine, chlorine, mineral sanitizers, and biguanide.