Helps raise calcium levels in spa water to prevent corrosion, protect surfaces, and support overall water balance—especially important in soft water areas.
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Calcium Hardness Increaser – 12 fl oz, SpaGuard®
Calcium Hardness Increaser (Part #42636BIO) is a liquid formula specifically designed to increase calcium hardness levels in hot tubs and spas. Low calcium can lead to etching, surface damage, and equipment corrosion. This 12 fl oz bottle is ideal for smaller applications or maintenance adjustments.
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Size: 12 fl oz bottle
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Purpose: Increases calcium hardness to protect spa components
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Benefits:
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Prevents corrosion and surface damage
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Maintains ideal water balance
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Helps reduce foam caused by water softness
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Safe for all spa finishes and compatible with all sanitizers
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Application: Test water before use. Add with jets running. Follow label directions for dosage based on water volume and calcium levels.
Essential for maintaining a healthy spa environment in areas with soft or naturally low-calcium water.
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