1. Hardness level should be tested often and maintained in the range of 100 to 200 ppm.
2. If level is below 100 ppm add 110 mL of CALCIUM+ per 1,000 L of spa water to raise hardness by 50 ppm.
3. Pour solution directly into spa water with the spa in operation.
4. Wait 15 minutes before using spa.
CALCIUM HARDNESS:
Hardness is the total dissolved mineral content of the spa water and is made up of mainly calcium and magnesium.
The ideal range for calcium hardness is 100-200 ppm.
Use on initial fill of spa or when required.
PRECAUTIONS:
Always add chemicals to water, NEVER add water to chemicals!
Carefully read and follow all label directions before use.
Never mix with other chemical.
Our Showrooms will be closed December 20th, 2025 to February 17th, 2026.
Our online store and service department will remain open.
| Service | We are still open during the showroom shutdown.
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| Online Store:
| Our online store are still open during the showroom shutdown.
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