10Lb Water Hardness/Calcium
Prevents Corrosion
Protects Equipment
Granular Formula
Extends Liner Life
This high-purity calcium chloride increases the calcium hardness levels in your pool water to help achieve proper chemical balance. Use this product whenever your hardness levels drop below the recommended range of 200–400 ppm to prevent water from becoming aggressive.
Why You'll Love It
- Equipment Protection — Helps stop soft, "hungry" water from etching masonry surfaces and corroding metal ladders, heaters, and light niches.
- Liner Longevity — Maintains proper mineral saturation to help prevent vinyl liners from becoming brittle and losing their elasticity over time.
- Crystal Clear Water — Balanced calcium levels contribute to better water stability and help prevent foaming or cloudy water issues caused by soft water.
- Easy Application — The granular formula dissolves efficiently when added directly to the pool, making it simple to maintain your levels during the season.
Best For
- Low calcium hardness levels
- Vinyl liner pools
- Fiberglass and concrete pools
- Fresh water refills (well or city)
How to Use
- Test water to determine current calcium hardness levels.
- Calculate the amount needed to reach 200-400 ppm based on pool volume.
- With the pump running, broadcast granules over a wide area of the deep end.
- Allow the water to circulate for 4 to 6 hours before retesting.
Pro Tip
Avoid adding hardness increaser on the same day as pH or Alkalinity increasers, as this can cause temporary clouding or scale formation in the plumbing.
Always follow label directions. Test and balance water chemistry before and after treatment. Keep chemicals stored sealed, cool, and dry.
