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    Calcium Hardness Increaser

    In The Swim Calcium Hardness Increaser Protects Your Pool From Corrosive Water

    A calcium increaser for the pool is a quick and effective way to protect your pool from low calcium hardness. Pool water with below normal levels of minerals like chlorine, will try and extract minerals from anything it touches, like your pool walls, ladder and filter system.

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      • Item: # Y7200 5 lb. Bag $19.99
      • Item: # Y7210 25 lb. Pail $44.99
      • Item: # Y7220 45 lb. Pail $67.99
      • Item: # Y7250 90 lb. (2 X 45 lb.) $129.99
      • Product Description
      • Customer Review
      • Product Specification
      • FAQS
      • MORE INFO

      In the Swim’s calcium hardness increaser contains calcium chloride and comes in granular form which is fast acting and easy to use. When your pool test strip shows you pool’s hardness level has dropped below 150 ppm, simply add about six pounds per 10,000 gallons of water to raise the level by about 50 ppm.

      • Calcium increaser for pools prevents corrosive water from damaging pool surfaces, pool equipment and other areas around the pool
      • Fast acting granular calcium chloride raises pool hardness quickly
      • Dosage is approximately 6 lbs. per 10,000 gallons of water to raise hardness level about 50 ppm
      • Use In the Swim calcium hardness increaser when your hardness level drops below 150 ppm
      • Available in several different sizes

      Chemical name: Calcium Chloride.

      • Granular form.
      • Dosage: 5 Lbs per 10,000 gallons. Will raise the hardness level approximately 40 ppm.
      • DO NOT PREDISOLVE in a bucket or add a small quantity of water. Heat is generated when this product is dissolved in water.

      How much should I use to raise my calcium hardness?
      - In The Swim recommends 5 lbs. calcium hardness increaser per 10,000 gallons to achieve a 40-ppm rise.
      What should my calcium hardness level be at?
      - Your calcium hardness level should be between 200 - 400 ppm.
      Why should I be concerned with my calcium hardness level?
      - A low hardness level can cause corrosion of your pool's plumbing and heater as well as staining or etching your pool's surface.
      More Information
      INGREDIENTS: granular calcium chloride.
      Ideal level for vinyl or fiberglass pools is 175-225 ppm.

      Ideal level for concrete or plaster pools is 225-300 ppm.
      How Much Do I Need?
      7,500 10,000 12,500 15,000 17,500 20,000 22,500 25,000 27,500 30,000
      50 ppm calcium increaser 15 lbs. 20 lbs. 25 lbs. 30 lbs. 35 lbs. 40 lbs. 45 lbs. 50 lbs. 55 lbs. 60 lbs.
      100 ppm calcium increaser 9 lbs. 12 lbs. 15 lbs. 18 lbs. 21 lbs. 24 lbs. 27 lbs. 30 lbs. 33 lbs. 36 lbs.
      150 ppm calcium increaser 4.5 lbs. 6 lbs. 7.5 lbs. 9 lbs. 10.5 lbs. 12 lbs. 13.5 lbs. 15 lbs. 16.5 lbs. 18 lbs.
      200 ppm Desired Range!
      250 ppm
      300 ppm
      350 ppm Use Calcium Hardness Decreaser
      400 ppm Use Calcium Hardness Decreaser
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