The Role of Calcium Hardness in Pool Longevity When it comes to protecting your pool, water chemistry isn’t just about chlorine and pH. Calcium hardness — the amount of dissolved calcium in your water — plays a crucial role in preserving your pool’s surfaces and equipment. At Infinity Pool Solutions , we help homeowners understand why this often-overlooked factor matters and how proper management extends the life of your pool. What Is Calcium Hardness? Calcium hardness measu