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Chlorine tablets are an excellent chemical treatment to keep in your pool supply. These tablets contain concentrated chlorine that releases slowly into the water. If you struggle to keep your chlorine levels up, then you may want to use chlorine tablets in your swimming pool. 

Are chlorine tablets dangerous? Can they damage your pool liner and parts? How do you add them to your swimming pool? 

Keep reading to learn all you need to know about chlorine tablets and how to use them. 

Can You Add Chlorine Tablets Directly To Your Pool Water?

Chlorine tablets can be added directly to your swimming pool water. However, you should avoid simply dropping the tablets in your pool water and just letting them sit there in the deep end. Getting the chlorine tablets to mix into your pool’s water is an important part of proper pool sanitation, which requires you to circulate your pool chlorine.

Adding chlorine tablets to your pool skimmer basket is one of the best and most effective ways to chlorinate a pool. The pool pump pushes the water into the swimming pool and slowly dissolves it in the water.

However, there are better methods of distribution than adding chlorine tablets to your pool skimmer. Since chlorine tablets dissolve slowly, they can become highly concentrated in the skimmer if you turn the pump off. The dissolved chlorine tablets can damage your pool parts and equipment unless you plan to keep your pump running for over 12 hours straight.

Likewise, directly adding tablets to your pool can damage your walls and floor. Having chlorine tablets sitting on the floor of your pool can create a higher chlorine concentration in one spot. Having this sit there can cause bleach stains and potentially break a hole in the liner or ceramic flooring.

What’s the Best Way to Add Chlorine Tablets to Your Swimming Pool? 

Using a chlorine erosion feeder or floating dispenser is the best way to dispense chlorine. A floating dispenser is usually made from strong plastic with holes near the bottom. Sometimes the bottom is made from a netting that allows the water to leach through and slowly release chlorine into the water.

Floating dispensers are cheap and widely available at pool stores. All you need to do is add chlorine tablets to the floating dispenser and let it float and do its job. This is much safer and evenly dispenses the chemical into the water.

Erosion feeders come in two general categories, which include the following varieties:

  • In-line chemical feeder
  • Off-line chemical feeder

An in-line chemical feeder is also known as an automatic chlorinator. An automatic chlorinator usually gets installed in the pool’s plumbing system and works with the pump to dispense chlorine tablets. An automatic chlorinator is more expensive than other applicators, but they’re a good choice for longer-term pool maintenance.

Off-line chemical feeders are very similar to in-line feeders, but they don’t directly attach to the pump. Basically, an in-line feeder gets installed in the filtration system, but an off-line feeder attaches through a pipe.

Erosion feeders or floating dispensers are both excellent and safe ways to add chlorine tablets to your pool. These automatic chlorinators take a lot of the work out of the system and protect your swimming pool from over-chlorination.

How Often Should You Add Chlorine Tablets to Your Water? 

As a rule of thumb, you should only add chlorine tablets to your pool when you have low chlorine levels. However, as part of a regular maintenance schedule, you should add at least two 3-inch chlorine tablets to your dispenser weekly.

Always test your pool’s chlorine levels before adding tablets to your water. But most pool owners use chlorine tablets every week. They’re an excellent way to add a slow release of chlorine to your water chemistry and keep it balanced.

Can You Use Chlorine Tablets Exclusively in Your Pool? 

You shouldn’t only use chlorine tablets in your pool. You should use a combination of chlorine tablets, granular chlorine, and liquid chlorine. Not all chlorine varieties contain cyanuric acid or stabilizers to prevent chlorine from dissolving in the sun.

Chlorine tablets are more of an assisting chemical used to help keep your chlorine level balanced. We do not recommend using this variety exclusively in your swimming pool. 

Most chlorine varieties contain stabilizers and other chemical compounds to keep your pool water clean and clear. Chlorine tablets don’t contain these other compounds. Using these exclusively can create a lot of extra expenses and work for you. 


Chlorine tablets are an excellent choice for pool maintenance if you want an extra chlorine kick. Chlorine tablets offer an easy way to add extra chlorine to your swimming pool with slow-release tablets. 

These tablets can not replace other chlorine methods. However, they can improve your pool’s overall sanitation and balance. 

If you’re curious about the different types of chlorine in pools, check out our article explaining this topic. Or, if you want to know other topics, check out our full library of content today. 


Is Liquid Chlorine or Chlorine Tablets Better for Pool Care? 

Neither liquid nor tablet chlorine is better for swimming pools. Ideally, you’ll use both to maintain a balanced and clean swimming environment. 

Is it Dangerous to Touch Chlorine Tablets Without Gloves?

It’s not dangerous, but we don’t recommend handling chlorine tablets without gloves. Chlorine tablets are a concentrated chemical compound that can cause skin and eye irritation.