Do you have a pool? A clean and sparkling pool is the perfect addition to any home. But keeping your pool clean can be a lot of work. One important part of pool care is shocking your pool. It helps to kill bacteria and algae, and it also helps to keep your water clear. But with so many types of pool shock on the market, it can be hard to know which one to choose.

In this article, we’ll look at some of the best pool shocks on the market. We’ll also give you tips on choosing the right pool shock for your needs. Read on to find more.

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When Should You Shock Your Pool?

You should shock your pool at least once a week to maintain clean and healthy water. It would be best if you also shocked your pool after heavy rains or whenever the water looks cloudy. Shocking your pool will kill any bacteria or algae in the water.

Also, apart from routine, it’s important to shock your pool whenever you see any of the following signs:

  • The water has a foul odor
  • The water is cloudy
  • The water has a green tint
  • There are visible algae growths on the walls or floor of the pool

If you notice any of these signs, be sure to shock your pool as soon as possible to prevent the spread of bacteria or algae. It is also a good idea to test the water regularly to ensure that the chlorine levels are balanced.

1. HTH 52028 Ultimate Shock Treatment Swimming Pool

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The HTH 52028 Ultimate Shock Treatment Swimming Pool has an incredible 7-in-1 formula and is very helpful in keeping your pool water clear and ready for fun all season long. This product increases the chlorine level in swimming pools to kill bacteria and algae and reduces eye and skin irritation. It is adequate for all swimming pool types, including puddles with liners, Gunite pools, and saltwater pool systems. This package includes six 1-lb bags of shock treatment for your swimming pool.

HTH makes pool care easy with a shock treatment that you can apply directly to the pool and see clear results in just 24 hours. This pool shock is ideal for all pool surfaces and won’t fade your vinyl pool liner. You can also use this swimming pool shock in your saltwater pool for sparkling clear results.

It is easy to apply, produces crystal clear results quickly, and is compatible with all types of pool surfaces and saltwater pools. With HTH 52028, you’ll have the clearest and cleanest pool in no time!


  • Deals quickly with the algae and bacteria
  • Fast-acting formula
  • Works in all types of pools


  • Expensive than other related products.

2. DryTec Calcium Hypochlorite Chlorinating Shock

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Are you looking for a pool shock that is fast-acting and quick-dissolving? Look no further than DryTec Calcium Hypochlorite Chlorinating Shock. This pool sanitizer comes in 24 1-pound bags and is perfect for killing bacteria, controlling algae, and destroying organic contaminants. With a 68% calcium hypochlorite content, this pool shock will get the job done quickly and effectively. The recommended dosage is 1 pound per 10,000 gallons of water.

If you want to use the entire contents of the Shock bag, add the recommended dosage to your pool during evening hours while the filter pump is running. For best results, broadcast the product evenly over a wide area in the deepest part of the pool. Use the brush to disperse the granules if they appear at the bottom.


  • It’s relatively inexpensive.
  • Calcium hypochlorite also doesn’t have a strong odor.
  • It won’t bother you or your guests while enjoying your pool.


  • It can be tough on swimmers’ skin and eyes.
  • Keep an eye on your swimmers and make sure they’re not experiencing any irritation.

3. Zappit 73% Cal Hypo Pool Shock

The Zappit 73 Pool Shock is a granular formula of 73% calcium hypochlorite. It comes in a bucket and is designed to dissolve, destroying waste, algae, and bacteria in swimming pools quickly. This powerful shock treatment can be used for spring start-up, boost chlorine, or help balance pool water chemistry. One pound of the product treats 16,500 gallons of pool water. 50lbs buckets are also available.

This pool shock is designed to clean your pool quickly and effectively, keeping it looking its best. It is also very affordable to keep your pool in top condition.


  • Fast-acting and super effective.
  • Perfect for keeping your pool clean and clear.


  • It can damage the pool liner.

4. Austin’s 000176 Pool Tech Shock Gal. 12.5%

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Austin’s 000176 Pool Tech Shock provides its role at its best in keeping your pool clean and sparkling. This powerful 12.5% chlorine shock treatment kills bacteria and algae, leaving your pool water clean and safe. It’s perfect for use in above-ground and inground pools and easy to apply with a standard garden hose.

You can enjoy clean, clear pool water with just one treatment. This high concentration of sodium hypochlorite is tough on dirt, grease, grime, mildew, and more, making it ideal for pressure washing areas like driveways, sidewalks, gutters, and parking lots. Just be sure to follow all instructions carefully for safe and proper use.


  • Powerful and effective product that keeps your pool clean and clear.
  • Easy to use and apply, and you will see results immediately.
  • It is also very affordable, making it a great value for your money.


  • The shock might cause skin irritation.
  • Before applying it to your entire pool, test a small area first to avoid risk.
  • The shock is also not recommended for pools with vinyl liners, as it can cause the liner to deteriorate over time.

5. Swim Chlorine-Free Oxidizing Pool Shock

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The Swim Chlorine Pool Shock is ideal for use with chlorine or bromine sanitized applications and weekly maintenance and will not affect other chemical levels. It is a powerful oxidizing agent that eliminates combined non-sanitizing chlorine and provides higher free chlorine levels. The main active ingredient is Potassium Mon persulfate which is safe to swim in just 15 minutes after use. The normal dosage is 1 Pound per 10,000 gallons.

Oxidizing swimming pool shock treatments are essential to opening and closing your pool. Chlorine-Free Pool Shock is one of the most versatile shock treatments on the market. It will help eliminate chloramines and allow the sanitizing of chlorine more effectively. It is not only for routine maintenance but also great to use before and after expecting a heavy bather load.


  • This versatile product can be used for routine maintenance, as well as before and after a heavy bather load.
  • The main active ingredient is Potassium Monopersulfate, which is safe to swim in just 15 minutes after use.


  • It should not be used as a treatment or preventative measure against algae growth.
  • Do not use this pool shock to replace your weekly calcium hypochlorite shocking.

Best Pool Shock

ImageBest Pool ShockAverage Customer Review Link
HTH 52028 Ultimate Shock Treatment Swimming Pool4.7/5Amazon
DryTec Calcium Hypochlorite Chlorinating Shock4.6/5Amazon
Zappit 73% Cal Hypo Pool Shock4.7/5Amazon
Austin’s 000176 Pool Tech Shock Gal. 12.5%4.5/5Amazon

Also Read: How Long To Run Pool Pump?

What To Consider When Buying the Best Pool Shock?

When it comes to keeping your pool clean and sparkling all season long, one of the most important things you can do is shock it regularly. Shocking your pool helps to kill bacteria and other contaminants that can build up over time, and it also helps to keep the water looking its best.

But with so many different pool shocks on the market, how do you know which one is right for you? Here are a few things to consider when shopping for pool shock:

1. Formulation

There are two main types of pool shock: chlorinated and non-chlorinated. Chlorinated shocks contain chlorine, a powerful disinfectant that can kill bacteria and other contaminants. Non-chlorinated shocks, on the other hand, usually contain oxygen or other oxidizers that help break down contaminants.

2. Active Ingredients

When shopping for pool shock, check the label to see what active ingredients are in the product. The active ingredient is what does the work of killing bacteria and contaminants, so you want to make sure that it is effective against the types of contaminants that are common in your area. They are usually listed as a percentage, so the higher the percentage, the more powerful the pool shock will be.

3. Pool Size

Be sure to choose a pool shock designed for your pool’s size. If you have a small pool, you don’t need to use as much pool shock as you would for a large pool. Using too much pool shock can be harmful to your pool and its filtration system, so it’s important to use the right amount.

4. Chlorine Level

If you have a chlorine pool, you’ll need to use a pool shock that is compatible with the chlorine level in your water. Using too much pool shock can throw off the delicate balance of chlorine in your pool, so follow the manufacturer’s directions carefully.

5. pH Level

It’s also important to ensure that the pool shock you choose is compatible with the pH level of your pool water. Pool water that is too acidic or too basic can be corrosive to pool equipment and uncomfortable for swimmers. Be sure to test your pool water regularly and adjust the pH level.

6. Dissolving Time

When shocking your pool, you’ll need to ensure that the pool shock you choose dissolves quickly. The tablet or granules should dissolve within minutes so that they can start working right away.

7. Cost

Of course, the cost is also a factor to consider when shopping for pool shock. However, it’s important to remember that cheaper is not always better. Some of the less expensive pool shocks on the market may not be as effective as more expensive products. Be sure to read our reviews before making your final decision.

Also Read: Pool Turned Hair Green And How To Fix It?

What Does the Shock do to The Pool?

When you shock your pool, you are raising the chlorine levels to a very high level. This is done to kill off any bacteria or algae that may be present in the water. While shock does not have any long-term effects on the pool itself, it can cause some problems if it is not used correctly.

  • If you do not properly circulate the water after shocking the pool, the high chlorine levels can be dangerous to inhale. In addition, if you do not properly shock the pool, the bacteria and algae can quickly return.
  • The liners of above-ground pools can also be damaged by shock if it is not used correctly. If you use an automated pool cleaner, turn it off before shocking the pool.

Shocking the pool is important to maintaining a clean and safe swimming environment. However, it is important to use caution when doing so. Make sure to follow the directions on the shock product you are using. In addition, be sure to circulate the water after shocking the pool properly. This will ensure that your pool is safe and clean for everyone to enjoy.

Also Read: Why Is My Pool Green? Here’s How To Clean It


Can I Just Pour Shock In My Pool?

No, you should not just pour shock into your pool. Shocking your pool is a process that involves raising the chlorine levels in your pool to a high level to kill off any bacteria or algae present. Chlorine levels that are too high can be dangerous, so it’s important to follow the directions on the shock product you are using and to ensure you are circulating the water properly after adding it to your pool.

Can I Swim 12 Hours After Shocking Pool?

Swimming is generally safe after shocking your pool, but you should check the chlorine levels before getting in. The chlorine level should be back down to a safe range before swimming. You can test the chlorine level with a pool test kit.

How Long Should I Run My Pool Pump After Shocking?

It would be best if you run your pool pump for a few hours after shocking your pool. This will help circulate the shock throughout the pool and ensure it is properly mixed.

How Long Does It Take For Pool Shock To Work?

Pool shock generally takes about 24 hours to work. However, you may see results sooner if you are using a liquid pool shock treatment. Remember to check the chlorine levels before swimming to ensure they are back to a safe range.


You can’t go wrong with a quality pool shock when it comes to keeping your pool clean and clear. In this article, we’ve taken a close look at some of the best pool shocks on the market, so you can decide which one is right for you. We hope this information has been helpful and you’ll enjoy many years of worry-free swimming in your clean and clear pool.

Last Updated: July 27, 2022 / Categories: Outdoor & Garden, Pool & Spa / 10.6 min read / Tags: , , /

About the Author: Brian Stilts

Brian Stilts

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