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- In The Swim Pool Shock – 68% Cal-Hypo Granula...
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Item #:
30928857
In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25
Item #:
30928857
SLL 3098581
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 100 items left in stock.
Order now and get it around Thursday, July 30
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Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water with 68% Calcium Hypochlorite (Cal-Hypo) active ingredient.
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What Stands Out
High Purity
Contains 68% calcium hypochlorite, ensuring powerful sanitation for your pool while effectively killing bacteria and algae, providing crystal clear water that enhances your swimming experience.
Bulk Packaging
Offered in a generous 25-pound size, this product delivers exceptional value and longevity, making it ideal for frequent pool maintenance without the hassle of constant repurchasing.
Immediate Results
Quick-dissolving granules provide rapid chlorine action, allowing you to instantly treat your pool water, ensuring a safe and enjoyable swimming environment for friends and family.
Product Details
- h5 { color: #000; font-weight: 600; } When algae starts getting out of hand, turn to the fast-acting Calcium Hypochlorite chlorine granules pool shock! The 68% Calcium Hypochlorite active ingredient is very effective at killing and deactivating harmful contaminants such as bacteria, algae and other microorganisms. With 65% minimum available chlorine, Cal-Hypo (Calcium Hypochlorite) will provide you with the sanitizing power you need to keep your swimming pool or spa water crystal clear and safe for your swimmers. The non-stabilized formula is great for super shocking your water or everyday routine dosages, without the need to contain cyanuric acid. 68% Active Ingredient Calcium Hypochlorite pool shock 50lb bucket has 68% calcium hypochlorite active ingredient to provide strong, concentrated sanitization for your pool water. With 65% minimum available chlorine, In The Swim Calcium Hypochlorite will help maintain healthy and sanitary swimming pool water. Great for Commercial and Residential Use Whether your swimming pool is at a hotel, apartment complex or home, Calcium Hypochlorite granules are a great pool shock to keep your water sanitized and clean. Don't settle for anything less when looking for a pool shock to effectively treat pool problems like algae blooms and swimming accidents fast. As the chlorine dissolves in the water, it forms hypochlorous acid which is what kills and eradicates algae and bacteria. By destroying bacteria, algae, germs and pathogens, Calcium Hypochlorite pool granules provide a safer swimming environment while also improving and maintaining water clarity. Cal-Hypo pool shock 25lb bucket will provide your pool and spa the sanitizing power you need to keep your water crystal clear for its occupants. Usage Directions for Swimming Pools: Add the recommended dosage of In The Swim Calcium Hypochlorite Pool Shock during the evening hours while the filter pump is running. When adding this product to your pool, broadcast the product evenly over a wide area in the deepest part of the pool. If any granules settle to the bottom of the pool use a brush to disperse. Water Balance: For best product performance, swimmer comfort, and crystal clear water: Maintain pH in the range of 7. 2 to 7. 6. Maintain total alkalinity in the range of 60 to 120 parts per million (ppm). Maintain calcium hardness above 200 ppm. Use a reliable test kit that measures all these ranges. Use In The Swim Pool Care Products to make adjustments. Follow label directions for each product. Do not enter the pool until the free available chlorine residual is 1-4 ppm for each of the below noted water treatment applications. Shock Treatment / Superchlorination: For best results, see Water Balance and Usage Directions sections above before treatment. Every 7 days, or as necessary to prevent pool problems, shock / treat / superchlorinate the pool by adding 1 lb. of this product per 10,000 gallons of water to provide 5 to 10 ppm available chlorine. Additional shock treatments may be required to correct problems which are caused by visible algae, high bathing loads, heavy wind and rainstorms. Additional shock treatments may also be required to correct problems such as unpleasant odors and eye irritation. Check the available chlorine with a suitable test kit Algae Control: Follow Shock Treatment directions on the label. Add this product as close as possible to any algae on the side or bottom the pool. If necessary, repeat treatment. To prevent possible staining or bleaching, take the following steps immediately after treatment: Thoroughly clean pool by brushing surface of algae growth, vacuum and cycle through filter. Commonly Asked Questions: What are the Calcium Hypochlorite chlorine granules comparable to? - In The Swim Calcium Hypochlorite 68% is comparable to HTH, SPP, and Pulsar. What is the chemical make up of the Calcium Hypochlorite chlorine granules? - In The Swim Calcium Hypochlorite are 65% minimum
| Chemical standard type | Shock |
| Pool chemical type | Chlorine Pool Chemicals |
| Weight | 25 lbs (11.34 kg) |
| Count | 1 |
| Rec. use | Swimming Pool |
| Piece count | 1 |
| Size | 25 lbs |
| Brand | In The Swim |
Who Should Buy?
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Pool Owners
Ideal for pool owners seeking effective sanitation against algae and bacteria in residential swimming pools.
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Frequent Swimmers
Great for families and individuals who swim often and require consistent water clarity and sanitation.
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Emergency Treatment
Perfect for situations requiring immediate shock treatment to restore water quality after heavy usage or contamination.
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Small Pools
Not suitable for very small or inflatable pools where smaller doses and treatments are more appropriate.
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Sensitive Users
Individuals with skin allergies or sensitivities may react negatively to high chlorine levels in pool shock.
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Non-Chlorine Pools
Not recommended for pools that utilize alternative sanitizing systems, as it can disrupt their chemical balance.
Product Description
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Customer Questions & Answers
-
Question:
How do I use the product for swimming pools?
Answer: Add the recommended dosage during the evening hours while the filter pump is running and disperse evenly over a wide area in the deepest part of the pool. -
Question:
What water balance should I maintain for best results?
Answer: Maintain pH between 7.2 to 7.6, total alkalinity between 60 to 120 ppm, and calcium hardness above 200 ppm. -
Question:
Is this product suitable for spas and hot tubs?
Answer: Yes, it can be used in swimming pools, spas, and hot tubs after being dissolved to prevent bleaching.
In The Swim Chlorine Tablets Editorial Review
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MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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Leila
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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SLL 3098581
Order now and get it around Thursday, July 30
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Effective at killing and deactivating harmful contaminants
- Maintains healthy and sanitary swimming pool water
- Great for commercial and residential use
- Provides strong, concentrated sanitization for your pool water
- Improves water clarity and provides a safer swimming environment
- Easy to use with usage directions provided
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