Calcium Hardness Increaser for Hot Tub, 1-Quart

This product is designed to increase the calcium hardness in spas and hot tubs with low levels of hardness. Low hardness levels can lead to the etching of plaster and the corrosion of equipment. Before adding this product, it is recommended to test the water using a calcium hardness test kit or consult with your local spa dealer. The ideal hardness level is between 200-400 ppm (parts per million).

To determine the appropriate amount of product to be added, customers can use a calcium hardness test kit. One ounce of this product per 500 gallons of water will increase the hardness by approximately 10 ppm. After pouring the proper amount of product into the spa or hot tub with the equipment turned on, it is advised to run the filter for 1-2 hours. The water can then be retested in 20 minutes to ensure the ideal hardness level of 200-400 ppm has been achieved.

Customers often prefer this liquid product as it can be more convenient to use compared to granular alternatives. This product effectively addresses the issue of low calcium hardness levels, which can otherwise lead to the deterioration of plaster and equipment. By following the recommended steps and maintaining the ideal hardness level, spa and hot tub owners can enjoy a well-maintained and long-lasting system.

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