Liquid Chlorine Vs Tablets

Developed to help you destroy bacteria brought around by other pool users and naturally occurring microorganisms such as algae, chlorine helps to keep your pool clean and safe. That said, the chlorine levels in your pool might decline naturally over time. When this occurs, you may have to add some chlorine to the pool water, to maintain the ideal level.

The most common chlorine application methods include tablets and liquid chlorine. In this guide, we help you identify the similarities and differences between these two types of chlorine.

Liquid Chlorine vs. Tablets – How Do These Two Types Differ?

When comparing liquid chlorine vs. tablets, most pool owners tend to prefer the most convenient solution. One thing you should note after reading through this liquid vs. chlorine tablets guide is that both have their benefits and disadvantages. To settle for the best option, you have to consider the limitations of using either of these approaches.

Liquid Chlorine

This approach is the most convenient and cheapest approach of adding chlorine to your pools. Before adding the chemical, it’s best to learn about the specific application levels for your pool. Alternatively, you can consult with a professional pool cleaning service provider. The best way to add the chemical is right in front of the pool jet, to help provide the best chemical dispersion results.

If you have a gallon of liquid chlorine, the actual content of pure chlorine is 10%. Thus, to maintain the best pool chemistry levels, you might require a large amount of liquid chlorine to perform the daily treatments. This process might become much more complicated because liquid chlorine has a relatively short life span. Consider buying it in small amounts to avoid ruining an entire stock.

Chlorine Tablets

If your goal is to find a cost-efficient approach for applying chlorine, then consider using chlorine tablets. Why exactly? Well, chlorine tablets are much easier to store and affordable than the liquid version. More so, the chlorine tablets are designed to be “slow-release” products, which are easy to manage and apply.

Plus, the tablets won’t compromise your health or cause you to use swimming goggles as an alternative.

As far as comparing liquid chlorine and tablets goes in relation to labor intensiveness, chlorine tablets are much more convenient. Usually, you just have to stack the tablets by using an inline chlorinator. It’s a tool you can use to dissolve the tablet gradually, which makes it highly convenient for your needs. The dissolved chlorine will be measured automatically into the pool water that moves through the return line to the pool.

You can also use tablet chlorine in floating dispensers for chlorine, which are also highly convenient. These types will disperse the chlorine gradually as they move around the surface of the swimming pool. Both the floating and inline chlorinators require a relatively small amount of labor intensiveness.

Remember that some chlorine tablets contain various other useful aspects. For instance, aside from containing high levels of chlorine, the tablets might feature a water clarifier and algaecide. These are usually products from high-end brands and make it convenient for your pool management needs.

One of the main challenges associated with chlorine tablets is that it might lead to the accumulation of acid. This only occurs if you introduce the tablets to the pool skimmer when the pumps are ineffective. The acid can compromise the O-rings and gaskets over time, and these are vital components of the pool itself.

The Facts About Liquid Chlorine

Q. Can I achieve the same water quality with liquid that I get when using tablets?

A. There is no difference when you improve water quality when using liquid, dry, or gas products. The results are similar, because it is the same chlorine product, just administered through a different approach. Achieving the ideal water quality level is to ensure that you maintain the correct water chemistry levels.

Q. Does liquid provide the same level of calcium protection you can get from tablets?

A. Most water around the world qualifies as “hard enough” for adequate protection. Remember that any excessive levels of calcium can lead to scaling, which can damage the pool systems. In such instances, especially when the water hardness is low, consider adjusting the hardness of the calcium by using a different product.

Q. Does liquid chlorine lose its strength over time?

A. While liquid chlorine might lose its strength over time, it might take a few months before it degrades completely. Using ACCO chemical tanks is best to help persevere the levels of chlorine above the recommended levels.

Q. Is Liquid Chlorine the Same as Liquid Shock?

A. Yes, these two terms refer to the same thing. They both refer to a liquid chemical, which is used to treat pool water, of which the main component is chlorine. The process of “shocking” a pool refers to the steps involved in adding liquid chlorine to the water. The water has a faster effect when compared to techniques such as using tablets, which include a gradual release of chemicals.

Q: What Is the Best Chlorine to Use in A Pool?

A: For domestic pools, chlorine tablets are an excellent choice. This is because they are less labor-intensive, and can maintain the chlorine levels for a long duration. For the large pools, liquid chlorine is an excellent choice. The main reason for this is because liquid chlorine is an affordable approach to add chlorine to your pool. Thus, it makes it easy to apply the chlorine in large swimming pools.

Chlorine Buying Guide: Check the Label

  • Percentage of chlorine available – Trichlor tablets can have levels of as much as 90% chlorine available, and the liquid chlorine will be as little as 12%. Thus, this implies that pound for pound, the 90% chlorine has a better potential at producing chlorine for your needs. It would be good if you compare the cost per pound for different types of chlorine products.

  • Stabilized chlorine – when you come across the term “stabilized” on label or in the product name, this means that the chlorine contains an additional substance. The substance is Cyanuric Acid CYA, which protects chlorine from the sun by connecting to a chlorine molecule. Then, it forms something like a molecular umbrella, which helps to shield it from the sun’s ultraviolet rays.

  • Active ingredients – there are many types of fancy product brands, with some having hard-hitting names such as Burn Out and Sock It. If you evaluate the product level, especially on the lower left, you will notice a line that mentions the active ingredients in the product.

A Word on the Safe Use of Chlorine Products

Never mix chlorine products because this can be dangerous. None of the products mentioned above are safe to mix, and never mix pool chemicals with chlorine. This might lead to fires or explosions. Also, ensure you keep chlorine products out of reach of children and store them in a cool and dry place.

Also, ensure that you keep your chlorine products away from the reach of children. Also, keep them separate to ensure the chlorine products never mix.

When opening a bucket of tablets or liquid chlorine, ensure you don’t stand close to the product. The fumes can be toxic to your health. The moisture in the chlorine buckets can produce potent gases, which is why it’s crucial to store the tablets in a dry place.

When closing a bucket of tablets, ensure that you secure the lid correctly, to ensure a child never opens the top negligently. Chlorine is a potent chemical substance, and can also easily contaminate other household products.

Useful Tips for Pool Care If You Are Using Chlorine

Pool Care and Maintenance

You need to maintain the quality of the spa and ensure it stays clean throughout the year. Practice good habits such as cleaning the filter and emptying the skimmer basket. These are procedures that will ensure optimal protection for your investment for years. This way, you and the family will enjoy the pool for many years

Water Testing

Consider testing the water weekly, or perhaps two times a week. This will depend on the frequency of use and outside factors that ensure your pool water stays healthy. You can also use a DPD or OTO reagent-based test kit, or digital testing to help you monitor the pool chemistry.

Adjusting and Balancing

Adjusting and balancing the pool chemistry, you enjoy the most out of your pool with every season. The main advantage of maintaining optimal Ph and alkalinity levels is that it will enhance the ability of your sanitizer to kill bacteria. Also, balanced water chemistry will help reduce any chemical or maintenance costs associated with your pool. Balanced Ph and alkalinity will help stop corrosion and the formation of scale on the interior surface of the pool.


The summer months are coming in fast! You need a pool to spend quality time with the kids, or to perhaps improve the value of your property. Thus, this liquid vs. tablets guide will help you get prepared for the oncoming summer season. Remember that liquid both of these products each has its drawbacks and benefits. When using either type, you need to practice caution to ensure the best results. Liquid chlorine is best applied close to the pump, while tablets provide a gradual release of chlorine.