When to Add Calcium Hardness to Pool?

It is wise to wait at least 12 hours before adding any more calcium chloride to the pool.

When should I add calcium to my pool?

Only add calcium chloride when the pool is full. The heat from it can damage the pool finish if you add it while the pool is still filling. Wait one full cycle before retesting the water, and adjust the chemical levels if needed.

When should calcium hardness be increased?

In the Swim Pool Calcium Hardness Increaser is a great way to resolve low hardness levels. When the calcium hardness level in your pool gets lower than 200 ppm, the water is considered aggressive.