Natural Chemistry Spa Calcium Hardness Increaser bottle balances spa water calcium for clearer water.

Natural Chemistry

Natural Chemistry Spa Calcium Hardness Increaser – 1.83 lb | Raise Spa Calcium to 150–250 ppm

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$18.61

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Why customers choose PatioZora Garden

Overview

Maintain balanced spa water with Natural Chemistry Spa Calcium Hardness Increaser. This 1.83 lb bottle is designed to gently raise calcium hardness in your spa or hot tub, helping keep water within a stable range for a more comfortable soak. When calcium is too low, water can feel corrosive and cloudy water may appear. By nudging hardness toward the recommended 150–250 ppm, you may experience a more consistent balance that supports clearer water and safer surfaces over time.

Trusted as part of Natural Chemistry’s proven line of spa solutions, this product is built to work with your existing care routine. It emphasizes reliability and straightforward maintenance, so you can manage spa chemistry with confidence rather than guesswork.

Key Benefits

  • Raises Calcium Hardness: Lifts the calcium level to support a balanced water profile.
  • Ideal Hardness Range: Keeps water within 150–250 ppm to help protect surfaces and keep water clear.
  • Equipment Protection: Reducing low-hardness conditions can help guard spa surfaces, plumbing, and heaters over time.

How it works in practice

After testing your spa water, apply the recommended amount directly into the spa water while the circulating pump runs on high. The product reacts as it meets water, so pre-dissolving is not advised due to heat generation. Run the circulation for at least 20 minutes, then retest and adjust if needed. Natural Chemistry products are designed to deliver reliable results within common spa care routines.

  • Usage steps align with typical maintenance: test, measure, apply, circulate, retest.
  • Retesting helps confirm whether another adjustment is needed for ongoing balance.

Results can vary with each spa, but maintaining proper calcium hardness supports a more predictable balance and can contribute to clearer water and improved feel during soaks. This product complements a broader set of Natural Chemistry spa solutions designed to support regular maintenance without overhauling your setup.

FAQ

Q: What does Natural Chemistry Spa Calcium Hardness Increaser do?

A: It raises calcium hardness in spa water to help keep the water within the 150–250 ppm range, supporting balanced water and protecting surfaces.

Q: How do I use it?

A: Test the hardness, add the measured amount directly into the spa with the pump on high, circulate at least 20 minutes, then retest and adjust if needed; do not pre-dissolve.

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