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Calcium Hardness Up by GLB Pool & Spa
| | 15 LB. | $24.80 | Out Of Stock |
| Increases water hardness to prevent foaming, equipment corrosion and scaling.
Application: Normal: 1. Determine calcium hardness level. It should be between 150-250 ppm. 2. If the level is below 150 ppm, add CALCIUM HARDNESS UP by distributing the product over the water surface. 1 lb. of CALCIUM HARDNESS UP will increase the calcium hardness 10 ppm in 10,000 gallons of water.
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