- Raise the calcium hardness of your swimming pool water to protect your pool surfaces and equipment from harm
- Protects pool surfaces
- Prevents equipment damage
- Raises calcium hardness levels
- Helps prevent swimming pool water from becoming corrosive
- Protects & prevents corrosion
- Protects pool liners, metal and plastic surfaces as well as equipment from damage
- For best results, use HTH™ 6-Way Test Strips weekly to test, balance and maintain calcium hardness levels between 200 and 500 ppm