How Does Pool Ozone Work? The Costs, Pros and Cons


As you know, ozone plays a significant role in protecting the earth’s flora and fauna from ultraviolet (UV) radiation. But did you know that you can also use it to eliminate harmful pathogens in your swimming pool?

How’s that even possible?

Typically, ozone tends to be relatively unstable, meaning you can’t purchase it in cylinders as you do with other gaseous chemicals. You’ll have to use an ozonator or ozone generator to generate it on-site.

Read on to learn more about the pool ozone and why it might be an ideal pool maintenance option for you.

How Does a Pool Ozone Generator Work?

Technicians usually install ozone generators in your pool’s circulation system. When the water passes through it, ozone sanitizes it before returning to the pool.

Since ozone isn’t safe for humans, you must install the generator outdoors. Depending on where you live, you might have to install an ozone detection system with your generator as an added precaution. Generally, there are two ways that you can generate ozone to oxidize your pool water:

1. Corona Discharge Ozonator

A corona discharge ozonator relies on high voltage electrical discharges to generate ozone. The process is pretty simple: electrical discharges develop a ring of energy, and when oxygen flows through that ring, some of its molecules split apart and eventually reassemble to form ozone.

2. UV Ozonator

As for a UV ozone generator, air needs to pass over UV lamps to turn into ozone. Once it generates ozone gas, the next step is to dissolve it into the water. Here, you can use a venturi injection to draw the ozone gas into your pool.

Pool Ozone Generator Cost

Pool ozone price can widely vary depending on the brand, but one thing’s for sure: the bigger your swimming pool, the more you can expect to pay. Primarily, the price ranges from around $750 to $2,500. 

Besides keeping your pool’s pH levels balanced, pool ozone systems will help reduce chlorine consumption. As a result, you’ll spend less on chlorine and other pool chemicals. 

Pool Ozone Systems Pros and Cons

Like any other pool maintenance method, using a pool ozone system comes with its benefits and drawbacks. Knowing both its pros and cons can help you make the right decision on whether or not to use it.


  • Multiple options (UV and CD generators).
  • Effectively kills and inactivates viruses, bacteria, and parasites.
  • Works with vinyl liner, fiberglass, and concrete pools.


  • Ozonator can be quite expensive to buy and install.
  • Ozone is dangerous for humans.
  • You’ll still need additional chemicals such as chlorine.

Do You Need a Pool Ozone System?

Pool ozone generators are one of the best alternatives to chlorine. But they do have their downsides. However, if you want to reduce your chemical consumption, ozone generators can make a big difference in your pool’s health and quality.  

Our pool products offer a way out of any swimming pool problem you may have. Contact R&R Pools today or 902-876-2773 to find the right products and supplies for your pool.

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