Leisure Time Calcium Booster 1lb – Protect Your Spa from Corrosion & Etching
Keep your spa or hot tub water perfectly balanced with Leisure Time Calcium Booster. Low calcium hardness can cause corrosion, surface etching, and cloudy water — this easy-to-use formula quickly raises calcium levels to protect your spa surfaces and equipment.
Key Benefits
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Prevents Corrosion & Etching – Protects spa heaters, pumps, and surfaces from damage caused by soft water.
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Improves Water Balance – Helps maintain the ideal calcium hardness level for clearer, more comfortable spa water.
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Easy to Use – Simply add the recommended amount directly to spa water.
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Compatible with All Systems – Works with chlorine, bromine, ozone, and mineral-based spa care programs.
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Trusted Spa Brand – Leisure Time is known for high-quality, easy spa maintenance solutions.
Directions for Use
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Test water hardness with a reliable test strip or kit.
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If calcium hardness is below 150 ppm, add 1 ounce per 500 gallons of spa water.
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Circulate water for at least 30 minutes.
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Retest and adjust if needed until levels reach 150–400 ppm.