3 Best Chlorine Tablets For The Swimming Pool In 2020

best chlorine tablets

There are different types of chlorine formulations out there: liquids, granulars, and tablets. We are going to review three best chlorine tablets in this article. They are all stabilized, meaning there is a presence of cyanuric acid that makes your chlorine protected from the harmful rays of the sun. It can make your chlorine granules effective for a longer period of time.

Since we will use this chlorine source for a large pool, I chose 3-inches tablets to review. I also prefer to use the individually wrapped ones such as these for safety and practicality reasons. However, some of you might find the unwrapping annoying and time-consuming.

So sit back, and get ready to remove your pool or hot tub covers as we prepare for swimming time!​


Importance Of Chlorine Tablets​

We all know the importance of clean water, however, we cannot just simply dispose of hundreds of gallons of water every single use of our pools. Chlorine tablets are used to prevent bacteria, algae and other pathogens from thriving into our lido.​

Things To Consider When Buying​​

Size of your pool. Depending on the dimensions of your swimming pool or spa, you can either have 1-inch or 3-inch tablets. 5,000 gal of water can easily be maintained with one 3-inch chlorine tablet.​​

How To Use​

There are different ways on how you can add the tablets to your pool. You can use floaters, skimmer baskets, and the automatic chlorinator. The use of this can depend on the presence of liners. Chlorine tablets are corrosive and if you do not use the proper equipment for its distribution, it can damage your equipment.

Bear in your mind that your chlorine tablets should never be applied directly to your pool.​

  • Prevent staining
  • Avoids plaster etching
  • Protect your vinyl from fading and getting destroyed
  • Prevent copper stripping

Watch this very helpful video to know more:

Special Precautions

Although the use of chlorine is indeed beneficial, there are also negative effects of this tablet. Others can develop allergic reactions or skin and eye irritation. The fumes coming out from the chlorine is also unhealthy if taken in full concentration. In fact, this can kill a person. With this, please do not forget to open the buckets in a well-ventilated area.

It is important to use personal protective equipment if you will handle chlorine tablets. This would include wearing eye gears.

We have to take caution when mixing other chemicals with chlorine. In fact, I urge you not to do it at all. Keep chlorine tablets out of the reach of your children.

Got Extra Chlorine Tablets?​

Sometimes, we would just simply buy more than what we really need, don’t we? The thing is, considering your chlorine tablets as disinfectants (in your comfort rooms for example), is quite controversial.

A chlorine tablet can be very powerful. Just imagine one 3-inch tablet can clean an entire pool. Others would claim that it is effective in their toilets; that it can make the flushes function better and that it cleans the pipes. However, the majority would go against it.

Chlorine tablets can emit harmful fumes when the diluent is not enough. This makes it extra dangerous when the tablets get wet even in the slightest form. On top of that, chlorine tablets are strong it can cause pool markers to fade. With that kind of power, it is not surprising that the rubber materials in your tank could get damaged.​

3 Best Chlorine Tablets Reviewed in the Market

#1 - In The Swim 3 Inch Pool Chlorine Tablets 50 lbs

In The Swim 3 Inch Pool Chlorine Tablets 50 lbs

This chlorine tablet is true to its words, it is indeed dissolving very slow. On top of that, my friends who actually live in warmer areas love this because it does not evaporate so fast. That means you can spend more time playing with your friends and relatives in a clean pool.


  • Container is very sturdy
  • With odor reducing packs
  • Bucket with safety lock


  • Tablets are powdery

#2 - NAVA 12000295 3-Inch Chlorinating Tablets for Swimming Pool/Spa, 50 lbs

NAVA 12000295 3-Inch Chlorinating Tablets for Swimming Pool/Spa, 50 lbs

Maintaining the pristine quality of your pool will not be a problem with these tablets. The manufacturers are not only focused on swimming pools, they also cater to spas. Hence, the smell is somehow controlled compared to others.


  • Approved by EPA
  • Prevents build-up of mineral scales


  • Some users note discoloration of their pool water

#3 - Rx Clear 3 Inch Stabilized Chlorine Tablets (50 Lbs)

Rx Clear 3 Inch Stabilized Chlorine Tablets (50 Lbs)

Do not let bacteria and algae ruin your vacation and outdoor activities with RX Clear 3 inches stabilized Chlorine Tablets. This product has a perfect balance of 89& chlorine and 99% trichlor. Compared to the other two, this chlorine tablet has the highest percentage of Trichloro-S Triazinetrione.


  • Lightest and smallest amongst the three
  • Highest Trichlor concentration


  • Tablet is somehow easy to break


Swimming is such a very good recreational activity. Protect your family from harmful bacteria that can thrive on your pools. Buy the best chlorine tablets and you can also save lots of money.

Without further ado, I would like to tell you, that the best choice of chlorine tablet for me is In The Swim Pool Chlorine Tablets.

This decision may not be surprising because many other users can vouch on the effectivity of this product. It is individually wrapped – which protects your hands from getting in contact with the tablet itself. It is also stabilized; this means that the chlorine molecules are protected from easy evaporation. Hence, your pool will be cleaner and protected from disease-causing bacteria and algae longer.

It provides supreme protection for your outdoor pool and even spas without the side effects of turning the water into a different color – mostly green, not like other chlorine tablets sold on the market.

This tablet is also compatible with a number of dispenser types. This In the Swim Pool Chlorine Tablets remarkable because of its very slow dissolving manner. Because of this, you do not have to replace or refill the tablets so frequently.

I also recommend this product not only because of the cleaning power of the tablets but because of the material of its carrying case as well. It is very durable and the handle can tolerate even heavier contents. It. Lastly, since I am really protective by nature, the child-lock cover even secured the deal for me.​

I highly suggest for you to get the following items as well to maximize the time you spend maintaining your pool:

I hope you find this article. Help us improve by telling us your comments, suggestions, and corrections.


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