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Chlorine Shock For Pools Comparison - June 2025
| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3  9.4Excellent | 4  9.3Excellent | 5 Best Value  9.2Excellent | 6  9.0Excellent | 7  8.7Very Good |
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ModelIn The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound | Model Doheny's Super Pool Shock | Pro-Grade Chlorine Shock, Quick-Dissolving, Fast-Acting 68% Cal-Hypo Granular Pool Shock | 24 x 1lb Bags, Proudly Made in The USA | Model CPDI Champion 4-Pack Pool Shock, 12.5 Liquid Chlorinator for Swimming Pools, 1 Gallon Each - Fast-Acting Sodium Hypochlorite Sanitizer, Ready to Use, Non-Staining, Non-Scaling, Commercial Grade | Model Drytec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 1-Pound, 24-Pack | Model HTH 52036R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, (6 Pack) | Model Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools (6-Pack) | Model Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above Ground, Spas & Hot Tubs - 50 Pound Pail |
BrandIn The Swim | Brand Doheny's | Brand CPDI | Brand DryTec | Brand HTH | Brand Clorox Pool & Spa | Brand AQUA-ORG PLUS |
Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews | Reviews  |
Features | ||||||
Worth the money 9.3 | Worth the money 9.1 | Worth the money 9.9 | Worth the money 8.6 | Worth the money 9.1 | Worth the money 8.9 | Worth the money 8.6 |
Simple to use 9.6 | Simple to use 9.6 | Simple to use 9.9 | Simple to use 9.1 | Simple to use 9.6 | Simple to use 9.4 | Simple to use 7.7 |
Long life 9.4 | Long life 8.9 | Long life 9.9 | Long life 8.6 | Long life 9.1 | Long life 9.1 | Long life 7.9 |
Sheerness 9.4 | Sheerness 9.8 | Sheerness 9.9 | Sheerness 8.4 | Sheerness 9.3 | Sheerness 9.1 | Sheerness 7.7 |
Tech Specs | ||||||
product dimensions10.8 x 9.9 x 5.3 inches | product dimensions - | product dimensions 12 x 12 x 12 inches | product dimensions 24 x 12 x 6 inches | product dimensions 10.5 x 4.5 x 10.5 inches | product dimensions 5.69 x 8.5 x 7.81 inches | product dimensions 15.5 x 13 x 13 inches |
item weight13.07 pounds | item weight - | item weight 41 pounds | item weight 24 pounds | item weight 1 pounds | item weight 6 pounds | item weight 55 pounds |
customer reviews4.6 4.6 out of 5 stars 13, 651 ratings 4.6 out of 5 stars | customer reviews - | customer reviews 4.5 4.5 out of 5 stars 31 ratings 4.5 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 5, 656 ratings 4.6 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 2, 862 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 3, 996 ratings 4.7 out of 5 stars | customer reviews 4.1 4.1 out of 5 stars 154 ratings 4.1 out of 5 stars |
Review | Review | Review - | Review - | Review - | Review | Review - |
Available On | Available On | Available On | Available On  | Available On  | Available On | Available On  |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1In The Swim16% OffIn The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 12 X 1 Pound
9.6 Simple to use9.4 Long life9.4 SheernessWhy we love it
Effectively eliminates pool contaminants.
Ideal for regular maintenance and algae prevention.
Highly praised for maintaining crystal-clear water.
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9.7
2Doheny's
Doheny's Super Pool Shock | Pro-Grade Chlorine Shock, Quick-Dissolving, Fast-Acting 68% Cal-Hypo Granular Pool Shock | 24 x 1lb Bags, Proudly Made in The USA
9.8 Sheerness9.6 Simple to use9.1 worth the moneyWhy we love it
Quickly clears algae for crystal clear pool water.
Easy-to-use, pre-measured bags for convenience.
Reliable customer service with quick problem resolution.
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9.4
3CPDI
CPDI Champion 4-Pack Pool Shock, 12.5 Liquid Chlorinator for Swimming Pools, 1 Gallon Each - Fast-Acting Sodium Hypochlorite Sanitizer, Ready to Use, Non-Staining, Non-Scaling, Commercial Grade
9.9 worth the money9.9 Simple to use9.9 Long lifeMain highlights- Shockingly Quick Sanitation: Enjoy crystal-clear, swim-ready water faster with Champion Pool Shock’s powerful and potent 12.5 percent sodium hypochlorite formula, providing rapid sanitation for your pool.
- Reliable and Safe: Certified to NSF/ANSI 60 standards, this commercial-grade liquid chlorine ensures dependable and safe use in various aquatic settings. Available in convenient 1-gallon jugs, packed in a set of 4.
- Ready to Use: With no mixing required, it offers an effortless pool care solution. Simply pour it directly into your pool or feed it through a peristaltic metering pump for easy and effective sanitization.
- No Cloudiness or Stains: Keep your pool pristine with a formula that doesn’t cloud water or leave residue, preventing stains and ensuring a beautiful, clear swimming environment.
- Cost-Effective Solution: Save on pool maintenance with a liquid chlorine that offers superior cleaning power at a lower cost, reducing the need for expensive alternatives.
Chlorine Shock For Pools Buyer's Guide
Written by Dan GibsonIntroduction to Chlorine Shock for Pools
Chlorine shock is a process used to disinfect swimming pools. It is a powerful oxidizer that kills bacteria, algae, and other contaminants that may be present in the pool. Chlorine shock can also be used to clear up cloudy or green water. When used correctly, chlorine shock can help maintain a healthy and safe swimming environment for everyone.
Types of Chlorine Shock for Pools
There are several types of chlorine shock available for swimming pools. The most common type is granular chlorine shock, which is composed of sodium dichloro-s-triazinetrione. This type of chlorine shock is added directly to the pool water, and it quickly dissolves. Another type of chlorine shock is calcium hypochlorite, which is a granular form of chlorine and is dissolved in water before adding it to the pool. Liquid chlorine shock is also available and is a concentrated form of chlorine that is added directly to the pool water. There are also other types of chlorine shock such as sodium percarbonate and potassium monopersulfate that can be used in swimming pools.
Features of Chlorine Shock for Pools
The main features to consider when buying chlorine shock for pools include the type of chlorine shock, the amount of chlorine shock needed, and the safety precautions to take when using chlorine shock. It is important to choose the right type of chlorine shock for the pool, as some types are more effective than others. The amount of chlorine shock needed for a pool will depend on the size of the pool and the amount of contaminants present. It is important to follow the manufacturer’s directions when using chlorine shock, as chlorine can be dangerous if misused.
Considerations when Buying Chlorine Shock for Pools
When choosing a type of chlorine shock for a pool, it is important to consider the size and shape of the pool, the amount of contaminants present, and any special requirements for the pool. For example, some pools require a specific type of chlorine shock, such as sodium percarbonate or potassium monopersulfate. It is also important to consider the safety precautions that should be taken when using chlorine shock, as it can be dangerous if not used correctly.
Advantages of Chlorine Shock for Pools
Chlorine shock is a powerful oxidizer that is effective at killing bacteria, algae, and other contaminants in swimming pools. It is also relatively inexpensive and easy to use. Chlorine shock can also help to clear up cloudy or green water in pools. When used correctly, chlorine shock can help to maintain a healthy and safe swimming environment.
Conclusion
Chlorine shock is an effective and cost-effective way to disinfect swimming pools. It is important to choose the right type of chlorine shock and to follow the manufacturer’s instructions when using it. Chlorine shock can help keep swimming pools healthy and safe, and it can also help to clear up cloudy or green water.
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