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GLB Calcium Hardness Up is designed to increase water hardness, preventing foaming, equipment corrosion, and scaling. Proper water balance is essential for protecting pool surfaces and equipment. This product is simple to use — just pour it directly into your pool. It is compatible with chlorine, bromine, ozone, salt water pools, and biguanide sanitizers. Key Features: Increases water hardness to protect pool equipment Prevents foaming, scaling, and corrosion Helps maintain balanced pool water Easy to apply — just pour directly into the pool Compatible with chlorine, bromine, ozone, salt water, and biguanide sanitizers How to Use: Test Your Water: Use a pool water test kit to measure the current calcium hardness level. Determine the Dosage: Follow the product label instructions to calculate the correct amount based on your pool’s volume. Apply the Product: Pour the measured amount directly into your pool while the pump is running for even distribution. Re-test and Adjust: After a few hours, re-test the calcium hardness level and adjust if necessary.
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🇺🇸 Ship from USA · On Agora since 2026
$19.99