Every body of water needs calcium in it. Too little calcium, water is corrosive and will damage the spa. Too much water will produce damaging and ugly scale. When levels are ideal you will prolong the life of your spa and provides the best bather comfort. If you have a softener, you need this product!

Liquid Hardness Increaser
Product Details
Features
- Instantly becomes part of the water
- Compatible with all sanitizers and oxidizing systems
Benefits
- Prevents corrosion
- Helps prevents foaming
- Eliminates etching of delicate surfaces
Applications
- Apply to the spa while the water is circulating or as it is being filled
- 1 fluid ounce (2 Tbsp) per 500 gallons of water will raise calcium hardness level 6 ppm
Available Sizes
16 oz bottle