Shopping security
GLB Calcium Hardness Up is an essential water balancer that helps maintain proper calcium levels in your pool water, preventing corrosion of metal components and etching of pool surfaces. When calcium hardness is too low, water becomes aggressive and can damage your pool. This easy-to-use formula increases calcium hardness quickly and effectively, helping protect your pool investment.
Increases calcium hardness in pool water
Helps prevent equipment corrosion and surface etching
Enhances swimmer comfort by improving overall water balance
Compatible with all sanitizers, including chlorine, bromine, saltwater systems, minerals, biguanide, and ozone
Pools with low calcium hardness
Plaster, concrete, and gunite pool surfaces, which are especially vulnerable to calcium depletion
Use as part of a regular water balancing routine
Test your water’s calcium hardness level before use. Apply the recommended amount of GLB Calcium Hardness Up directly to the pool with the circulation system running. Always follow label instructions for safe and effective dosing.
Keep out of reach of children. May cause eye or skin irritation. Use appropriate protective gear and follow all safety instructions on the packaging.
Net Weight: 8 lbs
Achieve long-term pool health and water balance with GLB Calcium Hardness Up—your reliable solution for strengthening and stabilizing your pool water.
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
US$40
Get nowSign up to your membership to get coupons up to
15%
Get nowOpportunity to enjoy order discount up to 15% off
Top-Converting Item to Boost Your Average Order