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    Calcium Hypochlorite Sanitizing Granules

      Calcium Hypochlorite Sanitizing Granules is rated 4.9 out of 5 by 27.
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    HIGHLY EFFECTIVE 68% AVAILABLE CHLORINE AT AN ECONOMICAL PRICE!
    COMPARE TO HTH®, Pulsar® and Chloryte®.


    Keep your swimming pool or spa sparkling clean and contaminant-free with Cal-Chlor granules!

    • Our economically priced, fast-acting Calcium Hypochlorite (Cal-Chlor) sanitizing granules provide 68% available chlorine for hard-hitting immediate results!
    • Our non-stabilized formula is ideal for super shocking or everyday use.
    • Cal-Chlor granules can be used in swimming pools, spas and hot tubs.
    • Cal-Chlor provides powerful, effective sanitizing power.
    • Very effective at killing bacteria, algae and other organic contaminants.
    • Improves water clarity.
    • Dilution is necessary to prevent liner bleaching.
    • Available in different quantities
    • Economically priced.
    • Keep out of reach of children.

    NOTE: Customer signature required by UPS for delivery of this product

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      • Item: # C8010 25 lbs. $99.99
      • Item: # C8020 50 lbs. Now Only! $129.99 Was $159.99
      • Item: # C8030 100 lbs. $319.99
        Note: 100 lb. size shipped in two 50 lb. containers.
      • Item: # C8040 200 lbs. (4x50 lb.) $639.99
        Note: 200 lb. size shipped in four 50 lb. containers.
      • Item: # C8050 500 lbs. (10x50 lb.) $1,599.99
        Note: 500 lb. size shipped in ten 50 lb. containers.
      • Product Description
      • Customer Review
      • Product Specification
      • FAQS
      • TROUBLESHOOTING
      • MORE INFO

      Provide a safe atmosphere for swimming by destroying bacteria, algae and other harmful contaminants. Additionally, maintain a nice water clarity. Calcium hypochlorite (Cal-Chlor) granules will provide you with the sanitizing power you need to keep your swimming pool or spa water crystal clear and safe for your swimmers.

      Cal-Chlor granules are designed for sanitizing swimming pools and spas. Calcium hypochlorite (Cal-Chlor) granules are widely used throughout the swimming pool industry for disinfecting water as they are extremely effective at killing and deactivating harmful contaminants such as bacteria, algae and other microorganisms. Cal-Chlor granules can be used on a routine basis to keep your pool or spa water clean and can also be used for shock treatments when extra sanitizing power is required to kill organic contaminants.

      By destroying bacteria, algae and other harmful contaminants, calcium hypochlorite pool chemicals provide a safer swimming environment while also improving and maintaining water clarity. Calcium hypochlorite (Cal-Chlor) granules will provide you with the sanitizing power you need to keep your swimming pool or spa water crystal clear and safe for your swimmers.

      Guardex®, Bioguard®, Aquabrome®, Polysheen®, BurnOut®, Burnout 35®, Softswim®, Pool Magnet®, Chlorite®, Algae All 60 and MSA Algaecide are registered trademarks of BioLab, Inc. Pace® is a registered trademark of Arch Chemicals. In The Swim® is not affiliated with them and does not carry their products. The use of Sun®, Guardex®, Bioguard®, Pace®, and Leslies and their logos is for comparison purposes only.

      Rated 5 out of 5 by from GOOD STUFF Excellent product... works very effectively. Quick service via UPS and a fair price.
      Date published: 2017-05-31
      Rated 5 out of 5 by from Great Features I bought this product over a month ago and I am more than pleased with the quality of cleanliness it has maintained in my pool!
      Date published: 2017-05-23
      Rated 5 out of 5 by from Pool Opening I bought chlorine granules, shock and pool perfect. After the first initial shock, for the remainder of the year all I use in our pool is the granules and the pool perfect. It is crystal clear.
      Date published: 2017-04-25
      Rated 5 out of 5 by from So far, so good We bought this less than a month ago and it has done wonders. I am not sure if it is this product or my husband scrubbing the pool daily and cleaning our filters every few days. We did just switch to this product over Leslie's and think it is a superior product. I will try to update in a few months after continuous use and let you know how it is.
      Date published: 2017-04-24
      Rated 5 out of 5 by from Great product! These granulars are easy to use and work well to maintain chlorine levels without the cyuranic acid buildup. My go to chlorine product.
      Date published: 2017-04-22
      Rated 5 out of 5 by from exactly what I needed I had a to treat my pool for white water mold several times of the last 3 years which required multiple applications of high amounts chlorine based shock. The chlorine shock that I used was stabilized and the end result included my pool water registering a high level of stabilizer. I needed to find a chlorine product that did not include a stabilizer and this product was EXACTLY what I needed.
      Date published: 2016-08-14
      Rated 5 out of 5 by from Pool Shock This product cleared up the worst pool water I have ever had.
      Date published: 2016-06-27
      Rated 5 out of 5 by from Great instant chlorine A little goes a long way. Great buy and works well.
      Date published: 2016-06-15
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      Technical Specifications:

    • In The Swim granular Cal-Chlor is perfect for super shocking or everyday use. It is ph balanced to help reduce eye and skin irritation.
    • The Cal-Chlor is 68% available chlorine and 35% calcium. “Same as ITS pool shock”.
    • In the Swim recommends to pre-dissolve in water before adding to the pool. This is done to prevent bleaching and reduce clouding of the pool water.
    • If using as a weekly shock you will use 16oz. per 10,000 gallons.
    • If using as your main sanitizer you will use the following:
    • For unstabilized pools use 6-8 oz. per 10,000 gallons daily.
    • For stabilized pools use 3-4 oz. per 10,000 gallons every other day.
    • Dosages may vary to keep chlorine in 1-3 ppm range.


    • What are the Cal-Chlor sanitizing granules comparable to?
      – In The Swim Cal-Chlor is calcium hypochlorite. The Cal-Chlor is comparable to HTH, Pulsar and Chloryte.

      What is the chemical make up of the Cal-Chlor sanitizing granules?
      – In The Swim Cal-Chlor are 68% available chlorine and 35% calcium. Cal-Chlor is non- stabilized.

      How much Cal-Chlor do I use a week?
      – If using as a weekly shock you will use 16oz. per 10,000 gallons.
      – If using as your main sanitizer you will use the following:
      – For unstabilized pools use 6-8 oz. per 10,000 gallons daily.
      – For stabilized pools use 3-4 oz. per 10,000 gallons every other day.
      – Dosages my vary to keep chlorine in 1-3 ppm range.

      How do I dispense my Cal-Chlor?
      – In The Swim recommends to predissolve prior to broadcasting in the pool. This will prevent bleaching of the liner and help reduce in clouding of the pool water. In The Swim recommends having a bucket of water, and adding chemicals to the bucket of water and then introduce to the pool.


      Troubleshooting:

      – If chlorine seems ineffective make sure you are dispensing the correct amount of chlorine. For best results, dissolve in water before adding to pool.

      – If using as a weekly shock you will use 16oz. per 10,000 gallons.

      – If using as your main sanitizer you will use the following:
      – For unstabilized pools use 6-8 oz. per 10,000 gallons daily.
      – For stabilized pools use 3-4 oz. per 10,000 gallons every other day.
      – Dosages may vary to keep chlorine in 1-3 ppm range.

      – If chlorine still seems to be ineffective check the stabilizer also known as cyanuric acid. The correct level for stabilizer is 30-60 ppm. If the stabilizer is too low the chlorine will be used up faster making it appear that the chlorine is not effective. If the stabilizer level is too high it will slow down the oxidizing process and render the chlorine less effective. This must be compensated for by using a higher concentration of chlorine in the pool water.

      – If the chlorine seems to be defective/ineffective, you can test by putting a small amount of Cal-Chlor into a glass of tap water. (Do not use pool water.) Dissolve and test as usual.


      More Information
      65% Available Chlorine (35% Calcium)
      Must dilute to prevent bleaching of the liner.
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