Spa Choice Liquid Increase Calcium gently raises water hardness which helps to prevent equipment damage and foaming problems. Allows for faster and more accurate control of spa water chemistry. Easier to use than dry granular balancers because it goes directly into the hot tub water with nothing to mix. Best Buy: Our Spa Choice chemicals are fresh and high potency, guaranteed to equal or outperform all other brands.
Product notes: Compatible with all sanitizer systems. Use 1 oz. per 100 gallons to increase hardness by 7 ppm, allow water to equilibrate for 30 minutes, then retest.
Sign In
