Best Pool Shock – Overall Review

Do you own a pool? Then, it is important to maintain it well for safety purposes. Cleaning it with a pool cleaner alone is just not enough for a pool. There are some other factors to be considered. One of the essential things is using Pool Shock for cleaning the water. You might not be aware of Pool Shock if you are new to the pool. However, it is essential to know about it. The pool shock ensures that your pool water is cleaned. It effectively kills the bacteria and algae from the water with its high dose of chlorine. After using this, the water looks great and clears, ensuring your safety as well. When you use the shock to the pool, it increases the chlorine level up to 5 times. The process is that you're sanitizing the water, so you don't get any health issues because of the pool water, making you enjoy your swimming without any worries. During the process, the pool shock oxidizes the chlorine level in the water and boosts its free chlorine level, good chlorine that targets bacteria and algae and kills them effectively. However, you may find yourself in difficulties when you're looking for the pool shock since there are a lot of options out there. If you're no clue about the pool shock, then this is the page for you. Here we've listed the best pool shock available on the market today. Read on the entire article for more information. There are a lot of factors to be considered while choosing the best pool shock. Here are some of the factors. Take a close look at this and follow up when choosing the best for your pool.

Things to Consider Before Buying Pool Shock

Stabilized or Unstabilized Shock

There are two different types in the pool shock, namely stabilized and unstabilized. The stabilized pool shock contains sodium dichlor, which remains the chlorine even in the daytime. So, it will never let the sun rays wash out. The unstabilized one should only be used at night as it dissipates too quickly during the day.

Chlorine level

The chlorine level of the pool shock should be another consideration. The more the concentration of the chlorine is, the more effective the pool shock. This is because using the optimal concentration in your pool is instrumental to its efficiency. However, if you've pool shock with high concentrated chlorine, make sure you use a tiny amount of chlorine for better and safer performance. If you're forgetful, you may face a lot of problems.

Powdered or Liquid Pool Shock

There are two different forms of pool shock. Usually, most brand pool shocks come in powdered form, which is easy to use and needs premixing. When it comes to the liquid pool shock, it works well and prevents your pool liner from getting bleached by chemicals. Thus, you can go with the pool shock, depending on your convenience.

pH neutral

Maintaining the pH level of the water in your pool is important. So, we advised you to go for the pool shock that doesn't affect the water's pH level. When the pH level is low, the water becomes corrosive, which will ruin your pool's metal components and pipelines. If the pH level is high, it increases water's acidic level, which is not good for health. You may end up with irritating eyes, nose, and mouse. This is why maintaining the water at an optimal level is essential.

Minimal ingredients

When you use pool shock in your pool, allow them to impact the water as much as possible for clear form. For better results, you'll have to choose the pool shock with few essential ingredients, including calcium, dichlor, etc. Calcium increases the calcium level in your pool's water, while dichlor adds cyanuric acid to the water. If you've luckily found the pool shock with no additive means it's really good. However, it's a little hard to have but look for the one with few extra ingredients other than chlorine.

Speed Results

Not all pool shock is equal and varies from different components. In that case, some product delivers good result nearly instantaneously while some take around 24 hours for the same results. So, you'll need to keep this in mind while selecting the pool shock.

Lists of Best Pool Shocks

1. In The Swim Chlorine Pool Shock In The Swim is one of the popular brands for pool shock, so it is our first pick. It comes with a high concentrated chlorine level with calcium hypochlorite. This product comes in a small bag, which is sufficient for your pool treatment as you'll use a small amount for every use. This can be a perfect option for the regular pool maintenance, and its concentrated chemicals are highly effective in the water. You can go with the pool shock if the pool requires a rapid chlorine boost. In addition, you can also use this for a pool that looks cloudy and dirty. The high concentration of chlorine will kill the bacteria and algae with ease and leave your pool crystal-clear. However, using a pool shock daily might not be a good choice. You'll need to know the conditions of the pool before using it. The pool's condition will let you know how often it needs pool shock. According to that fact, use the crystalline shock on your pool. If you have a regular pool, using a pool shock weekly once is enough. One of the drawbacks of this product is it doesn't fit vinyl pool owners. If you're the one, we suggest you go with other options on this list. Overall, this is a reputable and well-known brand for pool shock. You can choose this with confidence, and it will definitely improve your pool's water quality without a doubt. As a crowning glory, this is a highly reputable brand in this space, so you can buy with complete confidence and the knowledge you'll soon be improving the quality of the water in your pool. Features
  • Contains 68% calcium hypochlorite
  • Weighs 12 x 1 pound
  • 1 pound per 10,000 gallons
What we like in the In The Swim Chlorine Pool Shock
  • Doesn't required measuring
  • High levels of calcium hypochlorite
  • Great value for the money
What we like in the In The Swim Chlorine Pool Shock
  • Not suitable for vinyl pools

2. SpaGuard Enhanced Pool Shock Swimming pools will be contaminated easily when the water is mixed with cosmetics, body oils, and perspiration. These are the reasons for irritating eyes and skin. So, you've to clean the water to vanish such components from the water. Remove them easily by oxidizing or shocking water. Using pool shock in water not just diminish such components but removes bacteria and algae as well. One of the best things about the product is that it delivers different benefits to the pool when using some components, including shock, clarifier, pH buffer, and flocculent. So, it is considered a multi-purpose pool shock. By using the pool shock in the water, you will get the pool with shining brilliance that shows in the ads. This can be a perfect option for the pool that is dirty inside; it helps to kill bacteria and algae in the water. The stuff mentioned above can be compatible with both chlorinate and brominated spas. It works with either ozone or an ionization system. What's more! The sodium dichlor is its active ingredient, which is at a concentration of 58%. This is a non-stabilized shock, thus making you use the pool shock at night as it might dissipate too quickly during the day. This can be ideal for a residential swimming pool. Features
  • Contains 58% sodium dichlor
  • Weighs 6 pounds
  • 1 pound per 10,000 gallons
What we like in the SpaGuard Enhanced Pool Shock
  • Multi-purpose pool shock
  • Kills bacteria and algae
  • Removes bad odor
  • Adds shining brilliance
What we like in the SpaGuard Enhanced Pool Shock
  • Non-stabilized

3. hth Super Shock Treatment Are you looking for the best pool shock at an affordable price? Then, you will never go wrong with Hth pool shock. It has a high concentrated chlorine level, making it one of the best pool shocks out there. Plus, it contains 56% active ingredient of calcium hypochlorite, which can deliver visible results just in 24 hours. It clarifies your pool efficiently and won't over-stabilize it. If you're a customer of the Hth brand, you need to be aware that the company has overhauled the package. Now, the pool shock comes with a different look but with the same excellent results. Another thing is its granules dissolve in the water quickly. The pool shock weighs about 6 x 1 pounds, so you don't have to fuss about measuring this stuff. Use the proportioned amount of shock to the water and let the formula get to work efficiently. There are different quantities of shock, letting you buy as per your requirement. Since it cleans the water by killing bacteria and algae, you don't have irritating skin or eyes. Without any worries, enjoy your day inside the pool. The Hth pool shock will definitely make this summer fun and pleasant. Features
  • Contains 56% calcium hypochlorite
  • Delivers result within 24 hours
  • Weighs 12 x 1 pound
  • 1 pound per 10,000 gallons
What we like in the Hth Super Shock Treatment
  • It dissolves in the water quickly, just in minutes
  • Quick-acting pool shock
  • Eliminates skin and eye irritation
  • Doesn't over stabilize the pool
What we dislike in the Hth Super Shock Treatment
  • Could have been better if it dissolves more effectively

4. Clorox Pool and Spa Shock Clorox Pool and Spa Shock is another pick on this list since it is one of the best- and well-known brands for pool shock. The highly reputable brand comes with a classic formula, which cleans the water efficiently. You might have seen this brand from products in your home as it's popular for cleaning the kitchen or bathroom. So, you'll see the same effect in the swimming pool as well. With its super-efficient chemicals, it will kill bacteria and algae efficiently. When it comes to the pool, it does more than others in the market segment. Without a doubt, you'll definitely enjoy the cleaning and glimmering water after being treated with this solution. This can decimate aby bacteria and black and green algae and mustard pool algae as well. Plus, it is also great at killing any rogue bacteria that pollute the water. Since it has highly concentrated sodium dichlor (58%), it can be ideal for open up a pool after the off-season because they may be contaminated much during the period. In order to turn back it normal, you'll have to use the best pool shock as they are only efficient at cleaning the pool. In addition, it is a stabilized pool shock so that you can use it during the day. It doesn't take much time for cleaning can finish the task within 15 minutes. Ready for the dive as it cleans the water in a short time. Moreover, it is an effective pool shock and doesn't let you experience the water's pH level going out. The Clorox Pool and Spa Shock is a good value for the money. So, it is a worthy investment if you want to restore as new in less time. Features
  • Contains 37% chlorine and 58% sodium dichlor
  • Dissolves in the water within 15 minutes
  • Weighs 6 x 1 pound
What we like in the Clorox Pool and Spa Shock
  • Can kill any type of bacteria and algae in the water
  • Comes with an instruction manual
  • Doesn't affect water's pH levels
  • Multifunctional shock
What we dislike in the Clorox Pool and Spa Shock
  • The provided instruction could have been cleared

5. Zappit Hypo Pool Shock Zappit Hypo Pool Shock is next on this list as it comes with highly hard-hitting chlorine and calcium, making it worth buying. The pool shock is packaged in a supersized 50-pound tub. However, you'll need just 1 pound of pool shock for a pool with a 40,000-gallon capacity. This is powdered-based pool shock, which doesn't take much time to dissolve in the water. With this granular form, you can easy to ladle into the pool and get instant results. This is tailor-made pool shock treatment reinvigorates the water in your swimming pool. So, it lets you enjoy your swimming season or longer. It doesn't let water contaminate, ensuring the safety of the users. The important thing is you'll need to be at home during the delivery as it requires your signature due to the product's nature. One of the best things about the Zappit Hypo Pool Shock is it is a fast-acting pool shock and an excellent option for open up your pool after an off-season. Features
  • Contains 73% calcium hypochlorite
  • Dissolves in the water quickly
  • Weighs 50 pounds
  • 1 pound per 40,000 gallons
 What we like in the Zappit Hypo Pool Shock
  • Its granules dissolve in the water quickly
  • Comes with high concentrated chlorine of 70%
  • Efficiently kills bacteria and algae
  • Clarifies water
What we dislike in the Zappit Hypo Pool Shock
  • Signature must require on delivery

6. DryTec Chlorinating Shock Treatment DryTec Chlorinating Shock Treatment is one of the reputed brands for pool shock. It has huge customers and good reviews and ratings. The complete package includes a 24 value pack; each one is 1 pound bag, thus making usability easier. You don't have to measure simply take a pound bag and dissolve it in the water. Each bag is more sufficient to deal with 10,000 gallons. The product is manufactured carefully to last for decades so that you can keep this for years. This is highly efficient for any type of pool. Like other pool shocks, it also leaves sediment in the water, but it will disappear in the water later. So, you don't have to care about it. With the 68% calcium hypochlorite, it is one of the highly concentrated solutions on the market. Use this pool shock in the evening while running the pool filter for better results. You are advised to use the entire pre-portioned bag. If it gets late to dissolve, you can make it dissolve with the help of the brush. This can also be a perfect option for regular use or occasional use. You'll definitely benefit from the DryTec Chlorinating Shock Treatment. You'll see crystal-clear water after treated the water with this pool shock. Like others on this list, it also kills bacteria and algae in the water. Features
  • Contains 68% calcium hypochlorite
  • Dissolves in the water quickly
  • Weighs 24 x 1 pound
  • 1 pound per 40,000 gallons
What we like in the Zappit Hypo Pool Shock
  • Contains high concentrated calcium hypochlorite
  • Capable of destroying any organic compounds
  • Easily dissolves in the water
  • Reputed brand
What we dislike in the Zappit Hypo Pool Shock
  • May form some sediment initially

7. Nava Chemicals StarPlus Pool Shock Nava Chemicals StarPlus Pool Shock is a stabilized pool shock, thus making it use any time during the day. You can also use the treatment to clarify the water right before you start to swim. It helps restore the clarity of the water by killing bacteria along with algae in parallel. The chemicals in some pool shock easily accumulate scale in the water. Scale is nothing but the build of calcium and minerals in the water. According to the manufacturer, it doesn't scale your pool's water and keep it scale-free. Most pool shocks on this list are intended for regular use, but the Nava Chemicals StarPlus Pool Shock is for monthly use. It dissolves in the water quickly, making it one of the fast-dissolving dichlor shocks on the market. It is easy to use since it is packed at a 1-pound dose. All you need to do is simply diffuse a 1-pound dose directly into the pool and let the chemicals get the job done well. Features
  • Contains 90% sodium dichlor
  • Dissolves in the water quickly
  • Weighs 12 x 1 pound
  • 1 pound per 10,000 gallons
What we like in the Zappit Hypo Pool Shock
  • Doesn't scale the water
  • Can be a great option for all types of pools and spas
  • Stabilized pool shock
  • Can be used during the day
  • Each bag comes in a 1-pound dose
What we dislike in the Zappit Hypo Pool Shock
  • Some settling occurs

8. Doheny's Chlorine Super Shock Doheny's Chlorine Super Shock is the last pick on this list. Are you looking for the pool shock for a weekly treatment? Then, going with the Doheny's Pool Shock could be the right decision. As it is a pool shock for a weekly treatment, it ensures the efficiency of the product. It contains highly concentrated chlorine, which diminishes bacteria and algae thoroughly. The pool shock delivers crystal clear water in a short time. This is one of the reliable brands, so you can buy this without hesitation. Since it contains 68% of calcium hypochlorite, it gets the job done well quickly. It includes 24 packs; each one is 1 pound. So, just simply discard the bag and dissolve it in the water. This action may also burn some amount of chlorine and chloramines but introduces new chlorine at maximum capacity. If you are looking for a pool shock with efficient nature to clarify the pool's water once a week, you can choose this without a doubt. Features
  • 68% calcium hypochlorite
  • 1 pound per 10,000 gallons
  • 24 x 1 pound
What we like in Doheny's Chlorine Super Shock 
  • Includes multiple bags
  • High concentrated chlorine
  • Highly reputable brand
  • Kills bacteria and algae
What we dislike in Doheny's Chlorine Super Shock 
  • Customer service could have been better


We hope you've found the best pool shock for your pool from this list. All these are top-rated effective shocks on the market right now. Not all are the same, varying with their ingredient's aspects. They are affordable pool shocks. Make use of it and choose the best one according to the conditions of the pool.    

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