9 Best Chlorine Tablets For Your Pool


All pool owners can agree on how important it is to keep their pools clean and maintained throughout the year. While it may be a tedious task, it is definitely a crucial one as the status of the pool directly affects the health of those who are using it. Apart from cleaning the pool, it is also important to keep the pool hygienic at all times.

For that, a lot of pool owners go with chlorine tablets. As you may already know, chlorine is a pretty common chemical that is added to the pool in order to keep the water safe and hygienic. Chlorine is also used in mineral water filters to maintain the purity level of water. Adding chlorine to any water body kills the bacteria, algae, spores, and other small insects that may be present in the water. If you are also looking for chlorine tablets to add in your pool, make sure you consider the following factors before you buy one.

  • Dissolving Speed: The dissolving speed of a particular chlorine tablet is a very important factor since it determines how effective the tablets will be for your pool. Various tablets are designed with different production methods. And thus, the dissolving speed might vary from product to product. It varies based on the type of application mentioned with the tablets. In any case, you should prefer the ones that assure faster-dissolving speed to get an effective result.
  • Amount: The amount of chlorine tablets you need for your pool is different for different pools since it is based on various factors such as water type, size of the pool, filtration system, etc. You should also get your pool water tested with a pool test kit to determine its pH and existing chlorine level before you buy a box of chlorine tablets. Ideally, the pH level of the water should be between 7.2 to 7.8 whereas the chlorine level should be between 1 and 3 parts per million.
  • Size of Tablets: Chlorine tablets designed for all kinds of water bodies are usually available in 2 size options that are 1 inch and 3 inches. Here, 1 inch chlorine tablets are better for smaller water bodies like hot tubs and spas. These tablets dissolve a lot faster and offer a little chlorine level increment for the water. On the other hand, 3 inches chlorine tablets are more suitable for water bodies containing more than 5000 gallons of water. While these options might be slower in terms of dissolving speed, they can increase the chlorine level pretty fast.

Apart from the factors mentioned above, there is a lot more to know before you can decide whether a certain chlorine tablet is feasible for your pool or not. For that, you will have to inspect all the information available for a certain package of chlorine tablets before you place your order. To make it easier for you, we are bringing the best chlorine tablets available in the market right here so that you can make a decision easily. We will also guide you on how to pick up the best chlorine tablet container for your pool in our “Buying Guide” for the best chlorine tablets so make sure you check that out.

Best Chlorine Tablets

Best Chlorine Tablets Reviews

1. CLOROX Chlorine Tablets

Clorox Chlorine TabletsWe will start off our list with one of the most popular options for chlorine tablets. This option is coming from CLOROX which is a brand that specifically deals with various disinfectants and cleaning solutions.

In the 1st place, we are listing the CLOROX Pool&Spa XtraBlue chlorine tablets. This is one of the best options for small to medium-sized pools because these tablets are 3 inches in size and offered in 5 lbs in quantity. The CLOROX Pool&Spa XtraBlue chlorine tablets are ensured to kill bacteria present in your pool as well as minimize the chances of algae creation while destroying the ones that already exist.

Apart from that, you can also rely on the CLOROX Pool&Spa XtraBlue chlorine tablets to prevent problems like corrosion, scaling, and staining on the pool apparatus, usually caused by non-chlorinated pool water. Since this is a stabilized method of chlorine addition, it is safe from UV rays and offers long-lasting results. Apart from chlorine, the CLOROX Pool&Spa XtraBlue chlorine tablets also contain conditioners to make the water feel smooth.

Best Features

  • Available in 5 lbs in quantity
  • Tablet size is 3 inches
  • Needs to be applied only once every week
  • Added conditioner for smooth-feeling water

Pros

  • One of the most popular options for chlorine tablets
  • Great option for small to medium-sized pools
  • Clorox also has a mobile app for water analysis

Cons

  • Not suitable quantity for large pools

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2. In The Swim Chlorine Tablets

In The Swim Chlorine TabletsIn The Swim is also bringing a popular option for chlorine tablets on our list today. This brand also focuses on apparatus and accessories designed for pool owners such as pool chemicals, and cleaners.

In 2nd place, we are putting the In The Swim Stabilized Chlorine Tablets. As the name suggests, these are stabilized chlorine tablets to avoid any future problems caused by UV rays that are observed with non-stabilized methods. Plus, this option is more suited for large pools since you will get a 50 lbs in quantity of 3 inches chlorine tablets with this pack. To make it an even better option for large pools, In The Swim has managed to make the available chlorine with these tablets about 90%.

These are slow-dissolving chlorine tablets that might take a long time to take effect but will offer long-lasting results compared to smaller tablets. Plus, the effective increase in chlorine content of the pool water is quite noticeable. Each of these 3 inches tablets offer the Trichlor chlorine addition method and are individually wrapped to avoid damage in transit. And these tablets are designed in such a way that they can be used with any automatic feeder or floater with ease.

Best Features

  • Available in 50 lbs in quantity
  • Tablet size is 3 inches
  • 90% available chlorine
  • Works on the Trichlor chlorine addition method

Pros

  • Safe and stabilized method of chlorine addition
  • Large tablet size and quantity
  • Best suited for large water bodies such as public and commercial pools

Cons

  • Very expensive choice for household water pools

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3. HTH Chlorinating Tablets

HTH Chlorine Tablets3 inches chlorine tablets are quite popular in the market now for their added benefits and results. Therefore, there are a lot of reliable brands like HTH that offer these tablets in large as well as small quantities.

The HTH 42042 Super is our 3rd choice for the best chlorine tablet that you can buy right now. These are also 3 inches tablets like a lot of options present on this list. But, this is a rather small package and contains 5 lbs of chlorine tablets so that you can buy it for domestic as well as outdoor pools. The HTH 42042 Super tablets promise to sanitize and protect your pool water from all types of infections to offer you a healthy pool experience throughout the year.

Just a single tablet from the HTH 42042 Super container is enough to treat nearly 10000 gallons of water for about a week. It works perfectly fine with vinyl-lined water pools and even saltwater pool systems. And to minimize chlorine loss from the water, the HTH 42042 Super tablets are mixed with cyanuric acid. While preserving the chlorine content, it also protects and clarifies the water with ease.

Best Features

  • Available in 5 lbs in quantity
  • Tablet size is 3 inches
  • Made with cyanuric acid to prevent chlorine loss
  • 1 tablet is suitable for up to 10000 gallons of water

Pros

  • Cheaper option for a 3 inch tablet container
  • Easy-to-use chlorine tablet
  • It also protects chlorine loss

Cons

  • Quantity may not be enough for long-term use

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4. Pool Mate Chlorine Tablets

Pool Mate Chlorine TabletsPool Mate is also bringing a fine choice for our list of the best chlorine tablets. It also belongs to the 3 inches tablet category with a slightly increased quantity of tablets.

If you are looking for a chlorine tablet container that will last you for a long time for your small to medium-sized pool, take a look at the Pool Mate 1-1407 Jumbo Chlorine Tablets. These tablets are available in 3 inches size and are offered in 7 lbs in quantity so that you won’t be buying a new container anytime soon. The Pool Mate 1-1407 Jumbo Chlorine Tablets are manufactured to offer a stabilized chlorine addition to the water, making it highly beneficial for your health.

Apart from that, the Pool Mate 1-1407 Jumbo Chlorine Tablets also manage to prevent the existing chlorine content in your pool water from getting evaporated by UV rays. Thus, you won’t have to use these chlorine tablets as often as other options. If you have a 10000 gallons indoor or outdoor pool, you will only need one of the Pool Mate 1-1407 Jumbo Chlorine Tablets per week. But, you may also require 2 or 3 tablets based on pool water type and filtration systems.

Best Features

  • Available in 7 lbs in quantity
  • Tablet size is 3 inches
  • Stabilized method for chlorine addition
  • Prevents chlorine content from getting affected by UV rays

Pros

  • Slightly increased quantity compared to other smaller options
  • Affordable choice for 3 inches tablet
  • Only needs1 to 3 tablets per 100000 gallons of water

Cons

  • Quantity is not enough for large pools

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5. Doheny’s Chlorine Tablets

Doheny's Chlorine TabletsDoheny’s is also a brand that offers great options for commercial pools and water bodies. Apart from chlorine tablets, you will also find pool chemicals, equipment, covers, accessories, and much other pool-related equipment from Doheny’s.

The Doheny’s Swimming Pool Chlorine Tablets is yet another great product if you are looking for a chlorine tablet for commercial pools. These are Trichlor chlorine tablets that offer a stabilized chlorine addition method with up to 90% available chlorine content. The overall performance of a chlorine tablet heavily depends upon the hardness, density, and solubility of the tablet in the water. Therefore, all tablets provided in Doheny’s Swimming Pool Chlorine Tablets are highly compressed.

With that, the Doheny’s Swimming Pool Chlorine Tablets manage to offer a slow yet effective dissolution of the tablet in the water. These tablets are also pre-stabilized and manufactured to resist UV rays so that there is little to no chlorine burn-off after adding the Doheny’s Swimming Pool Chlorine Tablets to your pool. These tablets are also individually wrapped so that containers don’t give off a chlorine smell at all.

Best Features

  • Available in 50 lbs in quantity
  • Tablet size is 3 inches
  • Best option for large pool
  • Features 90% available chlorine content

Pros

  • Quantity is superb
  • The Trichlor chlorine addition method
  • Highly compressed tablets for better dissolving speed

Cons

  • Expensive choice for a chlorine tablet

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6. Qualco Chlorine Tablets

Qualco Chlorine TabletsComing back to smaller options for chlorine tablets designed for smaller applications, we have this next option coming from Qualco. Along with the small size of the tablet, the overall quantity is also smaller, making it easier for storage.

If you wish to try out chlorine tablets in your bathtub or spa, you should go with the Qualco Stabilized Spa Chlorine Tablets. This is a can of 1.5 lbs of chlorine tablets, where each tablet is about 1 inch in size. Despite being a highly affordable option, you don’t have to doubt the performance or results of these tablets. These 1 inch tablets offer a stabilized method of chlorine addition for your pool.

With that, you can rest assured that the chlorine quantity in your pool won’t degrade quickly. With the resealable lid, you also don’t need to use another container to store the Qualco Stabilized Spa Chlorine Tablets. One tablet from this container is suitable for treating about 700 gallons of water.

Best Features

  • Available in 1.5 lbs in quantity
  • Tablet size is 1 inch
  • Comes with a resealable lid
  • Easy to store

Pros

  • Best suited for smaller pools
  • Lightweight and compact container
  • Stabilized chlorine addition method

Cons

  • Quantity might be too low for some users

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7. BioGuard Chlorinating Tabs

BioGuard Chlorine TabletsEven if you are buying a chlorine tablet container for large pools, you don’t necessarily need to spend a fortune. There are brands like BioGuard which offer great options for large pools under an affordable budget.

The BioGuard SilkGuard is yet another great option for 3 inches chlorine tablet containers available within an affordable price range. There are 25 tablets available in the BioGuard SilkGuard chlorine tablet set, offering a total quantity of about 25 lbs. Therefore, you can get this unit and have your pool safe for a couple of months at a time. Apart from purifying your pool, the BioGuard SilkGuard chlorine tablets also manage to soften the water in your pool to make it more appealing for the users.

The BioGuard SilkGuard chlorine tablets are also useful for preventing problems like corrosion, scaling, and staining in your pool. With the SmartGuard technology, the BioGuard SilkGuard chlorine tablets offer a long-lasting result and prevent frequent chlorine treatments. These tablets also have additional algae-killing crystals which kill the existing algae in your pool and prevent new ones from forming.

Best Features

  • Available in 25 lbs in quantity
  • Tablet size is 3 inches
  • Makes the pool water smooth
  • SilkGuard technology

Pros

  • Long-lasting results
  • Affordable option for 3 inches tablets
  • Prevents corrosion, scaling, and staining

Cons

  • Tablets take a long time to dissolve

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8. Robelle Chlorine Tabs

Robelle Chlorine TabletsThere are only a handful of brands like Robelle that will offer you an all-in-one solution for a chlorine tablet. The following option for the chlorine tablets from Robelle might be an expensive one, but it offers pretty impressive results.

The Robelle 1440M-K is the most premium choice we have for the best chlorine tablets in the market. These are 5-in-1 tablets designed to offer the functionality of 5 different water treatment solutions with one tablet. Plus, these are 3 inches tablets, making them perfect for large water bodies such as outdoor pools and commercial pools. The Robelle 1440M-K can sanitize, descale, and purify your water pool.

Each of the Robelle 1440M-K chlorine tablets weighs about 8 oz and they are individually wrapped so that they offer a stabilized chlorine addition method with a slow dissolving process. Since this is a 5-in-1 option, it eliminates the need of adding other chemicals to your pool. Per week, you will only have to add 1 to 3 tablets for every 10000 gallons of pool water.

Best Features

  • Available in 35 lbs in quantity
  • Tablet size is 3 inches
  • Needs 1 to 3 tablets per 10000 gallons
  • 70 tablets are available in the package

Pros

  • These tablets offer 5-in-1 functionality
  • A total of 70 tablets are included
  • Great option for large pools

Cons

  • Most expensive option for a chlorine tablet set

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9. RAYYAKICG Chlorine Tablets

Rayyakicg Chlorine TabletsLastly, we have one more great option coming from RAYYAKICG. This is also an ideal choice for smaller pools with the given size and quantity. Plus, it is the cheapest option on this list.

For the last pick on our list of the best chlorine tablets, we have reserved the cheapest chlorine tablet set available in the market. The RAYYAKICG Chlorinating Tablets are provided 1 inch in size and are available in 1 lbs in quantity. But, the overall performance of the tablets is pretty noticeable thanks to the powerful chlorine addition possible by adding these tablets into smaller water bodies.

With the small tablet size, using the RAYYAKICG Chlorinating Tablets becomes very easy. All you will have to do is place the tablets in your pool floater or automatic feeder and that’s it. These tablets can be used for all types of small water bodies like small pools, hot tubs, spas, bath tubs, water parks, and much more. In the RAYYAKICG Chlorinating Tablets, you will find 22 tablets, making it a decent choice for this price.

Best Features

  • Available in 1 lbs in quantity
  • Tablet size is 1 inch
  • Suitable for small water bodies
  • Easy to use

Pros

  • Most affordable option for chlorine tablets
  • A total of 22 tablets are available in a pack
  • Works with most small water bodies

Cons

  • Not suitable quantity for large pools

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Buying Guide For The Best Chlorine Tablets

Even though chlorine tablets are necessary for almost every pool, you cannot just get the first option you find on the market and expect good results after dissolving them in your pool. Before you buy a chlorine tablet or a set of chlorine tablets, you will have to understand many different parameters such as the type of the tablet, tablet size, dissolving speed, and much more. You also need to carefully examine these parameters and decide what options are suitable for you based on your observation. While it is not possible to thoroughly check each and every option physically, you can easily do that right here. We have offered all the necessary information about each of our picks for the best chlorine tablets so that you won’t have to look anywhere else before making your choice. As for their important characteristics, you can refer to our buying guide that will help you while you are picking up the most compatible option for your pool.

1. Type of Chlorine Tablet

Before you start looking for a chlorine tablet for your pool, you should first understand how many types of chlorine tablets are available in the market. And after that, you have to decide which option seems perfect for your pool. For common water bodies such as swimming pools, spas, and hot tubs, there are a few most commonly used chlorine tablets that are listed below.

2. Sodium Hypochlorite

Sodium Hypochlorite can be a great option for your pool if your pool’s filtration system is comparatively weaker and might have a hard time with the hardness level of other tablets. These tablets usually offer 10 to 12% chlorine which might not be as effective as other options when it comes to killing harmful organic material such as algae or bacteria. Plus, these tablets introduce a non-stabilized method of chlorine addition that might degrade slowly under direct sunlight.

3. Lithium Hypochlorite

Lithium Hypochlorite is a comparatively stronger option than Sodium Hypochlorite as it contains about 28 to 35% chlorine. So, it can increase the chlorine level of your pool very effectively and maintain its chemical balance with ease. But, this is also a non-stabilized method of chlorine addition and it is vulnerable to UV radiation produced by the sun. After a certain period of time, it can create chloramine which causes irritation to eyes and skin for the user.

4. Calcium Hypochlorite

While we are discussing non-stabilized methods of chlorine addition, let us take a look at Calcium Hypochlorite pool treatment. This method is even more effective compared to Lithium Hypochlorite since its capsules come with up to 65% chlorine content. But while these tablets can exponentially increase the chlorine content of your pool, you still have to deal with the disadvantages of a non-stabilized method which leads to chloramine production if the pool is under direct sunlight.

5. Dichlor

Dichloris possibly the most common chlorine treatment used for pools nowadays. This treatment combines cyanuric acid along with chlorine to offer a stabilized chlorine addition method for your pool. It is highly resistant to UV radiation coming from the sun, making it an ideal choice for outdoor pools. The Dichlor method is usually applied in the form of granular tablets as opposed to solid tablets used in most other methods. As for the chlorine percentage, The Dichlor method introduces about 56 to 62% chlorine content to the pool.

6. Trichlor

Lastly, we will talk about the Trichlor method which is the most common chlorine addition practice in the market. This method introduces about 90% chlorine and it is introduced in solid tablets. This is also a stabilized chlorine addition method that is completely safe from UV radiation. And with the high chlorine content, this method is ideal for outdoor pools and large water bodies.

Size of Chlorine Tablet

When it comes to size, you will come across 2 options for chlorine tablets. One is 1 inches whereas the other is 3 inches tablets. Even though the basic working principle is pretty much the same for both tablets, the overall effectiveness and results will certainly vary depending upon your pool. 1 inch tablets are designed to be used with small pools, hot tubs, spas, and other water bodies with smaller water volumes. The main advantage of a 1 inch chlorine tablet is that they quickly dissolve in the water, offering a fast and observable result in the short term. And with the faster-dissolving speed, you can also observe the chlorine level rapidly increase in your pool. However, these tablets are quite ineffective when it comes to large water bodies having 5000 gallons or more water volume. In such a case, a 3 inch tablet should be preferred instead. These tablets might be a little slower in terms of dissolving speed, but they can manage to increase the chlorine level of large water bodies effectively.

7. Dissolving Speed

As you may have guessed, the dissolving speed of a chlorine tablet is a very important factor and it majorly impacts its performance and results on the water body. It is quite difficult to pinpoint the exact dissolving speed of a particular chlorine tablet as it varies based on many different factors such as application method, average water temperature, water pressure, size of the tablet, pool water type, and available filtration system, and much more. The basic thumb rule here is to consider the fact that the dissolving speed of a 3 inches chlorine tablet is certainly going to be much slower compared to a 1 inch tablet for the same application. The dissolving speed also changes based on whether you are using a floating dispenser or not for dissolving the chlorine tablets. While using a floating dispenser might cut down the overall dissolving time, the chlorine density might be inconsistent throughout your pool. Instead, you should consider automatic dispensers that can dissolve the chlorine tablets within 2 to 5 hours depending on the size of the tablet. You can also adjust these dispensers as per your requirement and increase or decrease the speed as needed.

8. Quantity

The total amount of chlorine tablets you need for your pool is not a set amount which can be the same for all pools. Since there are variations in pool sizes, water types, and even the surrounding weather, the quantity of chlorine tablets you need for your pool also changes. To get a perfect idea about how much chlorine content you need, you should get your pool health checked out with the help of a pool test kit. This kit lets you understand the current pH level and chlorine level of your pool that you can use while determining the number of chlorine tablets needed for your pool. Ideally, the pH level of the water in a swimming pool should be between 7.2 to 7.8 whereas the chlorine content should be within 1 to 3 ppm or parts per million of the water. You can also get an idea about the required chlorine amount from the overall pool size. If you are buying chlorine tablets for 350 gallons of water, you can go with a 1 inch tablet option. But for 5000 to 10000 gallons, you will be needing 3 inches tablets where the number of tablets should be according to your pool size and frequency of application.

Frequently Asked Questions

1. How many chlorine tablets do I need every week?

Ans: The amount of chlorine tablets you need completely depends upon the type of your pool, the size of the pool, and also the number of users using the pool on a daily basis. Public pools for example require a chlorine treatment at least once every week in order to keep them hygienic and safe. If we consider a standard public pool with 5000 gallons of water, it would need at least one 3 inches chlorine tablet every week. On the other hand, larger pools with 10000 or 12000 gallons of water capacity might need 2 to 3 3-inch chlorine tablets every week.

2. Where should I store extra chlorine tablets?

Ans: Safety is of utmost importance, especially when it comes to chemicals like chlorine that you are using for your pool. So while storing the extra chlorine tablets, make sure that they are out of reach from children and stored in a safe location. Chlorine tablets usually have a pretty strong shelf life ranging up to 3 to 5 years. And since they are already wrapped in plastic before shipping, no other care is needed while you are strong with the extra tablets. But, you should still consider the storage temperature and make sure that it is between 50 to 70 degrees Fahrenheit.

3. Are there any alternatives to chlorine tablets?

Ans: If you are looking for an alternative to chlorine tablets, you should consider liquid chlorine. While it is more of a short-term solution, using liquid chlorine can still be effective for you, especially if you have a small pool. To apply liquid chlorine, all you will have to do is pour the liquid into your pool and let your filtration system take care of the rest. And since it is already liquid, there is almost no dissolving time needed for liquid chlorine. But as we specified, it is a short-term solution because liquid chlorine does not last very long in your pool and degrades within weeks. Plus, it only adds up to 10 to 12% chlorine in the pool, creating a need for a lot of liquid chlorine for large pools.

Conclusion:

Getting a container full of chlorine tablets is one of the first things you should do if you wish to take proper care of your pool and keep it safe and hygienic for your loved ones. Adding chlorine content up to a certain level to your pool allows it to kill bacteria, algae, insects, and other harmful organic material present in the pool, making the water safe for everyone.

But, you will have to look out for the best options available in the market for chlorine tablets right now and make a decision based on the information available with each option. Fortunately, we have already done the hard work for you and created this list of the best chlorine tablets that you can buy right now. There is a brief review available with each of our picks that helps you to understand what you are buying before you buy it. We have also added a buying guide for the best chlorine tablets to help you even further in your search. If you’re still not sure, take a look at our top recommendations given right here.

  • If you are looking for a cheaper option for chlorine tablets, we will suggest you go with the RAYYA KICK Chlorinating Tablets. This is a perfect option for small pools since it includes 1 inch chlorine tablets and has a quantity of 1 lbs. So, you can use these tablets for smaller applications such as your spa or bathtub, or a small backyard pool in your home. Using these tablets is also as easy as buying them. All you will have to do is place the tablet in the pool feeder and you are good to go.
  • On the other hand, if you are looking for chlorine tablets for large backyard pools or commercial pools, then you should consider the In The Swim Stabilized Chlorine Tablets. These tablets are 3 inches in size and come in 50 lbs in quantity, saving you from buying new tablets for quite some time. These are slow dissolving tablets that arrive in an individually wrapped manner so that the tablets themselves do not lose chemical composition in transit. The available chlorine content for the In The Swim 3 Inch Stabilized Chlorine Tablets is about 90%, making it a suitable choice for large pools.
  • The Robelle 1440M-K is also a great option if you wish to get the finest results with your chlorine tablet. It is quite a premium option, but it offers 5-in-1 functionality so that you get the best results for your investment. The Robelle 1440M-K manages to sanitize, clarify, descale, and control the organic material like algae all with a single 3 inches 8 oz tablet. This is a stabilized chlorine addition method so that you won’t have to worry about future chloramine production caused by UV rays after dissolving these chlorine tablets.



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