Ozone Pool System Pros and Cons

What is an Ozone Pool System?

Ozone is great in swimming pools as it kills bacteria and parasites. It also destroys and gets rid of contaminants in pool water.

Ozone sanitises your pool in the circulation system rather than adding it to your pool manually.

Ozone can’t be bought in bags or big containers as it is untransportable. Ozone needs to be generated on-site, this can be done with an ozone generator

An ozone pool system is a pool system that incorporates an ozone generator to clean the pool.

Ozone water acts as a natural sanitiser killing moulds, spores and nasty bacteria and offering you a safer swim.


What does Ozone do?

Ozone helps destroy bacteria, viruses, mould and mildew. 

It also effectively eliminates spores, cysts, yeast and fungus and it eliminates oils and other contaminants in the water.

Essentially Ozone keeps the water sparkling clear and fresh.

Pros of Ozone Pool System

We have put together a list of pros of an ozone pool system below:


1. Quick Disinfection

The disinfection occurs over at the filter system in a matter of seconds and then it is gone!  


2. Destroys Irritants

Instantly destroys irritants like chloramines eliminating chlorine odours, itchy skin and sore eyes.

Ozone has no toxic or harm residues in comparison to chlorine which is known to create irritating chloramines. Ozone will prevent eye irritations and does not discolour bathers.


3. Enriched Water

Returns only pure, oxygen-enriched water to your pool.


4. More powerful

Treating water with ozone and UV light adds no chemicals to the pool water and is 200 times more powerful than chlorine, reacting with contaminants 3000 times faster.


5. Works instantly

Destroys algae spores, contaminants, viruses, and bacteria instantly and can easily be added to any new or existing pool


6. Low traces of sanitiser

A mineral magnesium system produces low traces of sanitiser that deal with pool contaminants in the water constantly.

What the ozone and UV system does is allow the sanitiser to be run at low levels which do not impact on water chemistry and pool equipment.


7. Renewable resources

Ozone and UV light are both naturally occur in nature.

They are nature’s renewable resources. Ozone and UV light oxidise organic and inorganic matter without forming by-products such as chloramines (which are responsible for the chlorine smell.


8. Reduces the need for Chlorine

The use of chlorine and UV light reduces the need for chlorine by up to 80%.


9. Superior water quality

Ozone treated water quality is superior in appearance and is healthier and safer for active pool users.

The ozone-water contains a micro flocculant which provides shimmering, clear water


10. Prevents residue build-up

Ozone prevents clogging and increases filtration efficiency it also prevents build-up of chemical residuals on glass and expensive paving.

It also prevents white crystal scale deposits on water line or interior.


11. No chlorine odours

Ozone and UV light removes chlorine odours.


Cons of Ozone Pool System

 There are also certain cons associated with an Ozone Pool System.

You should think of the following disadvantages listed below:


1. Higher start up costs

The system is more expensive to set up however it is an effective long-term investment.


2.  Active period

Although ozone and UV light are a lethal combination in killing bacteria and pathogens many times faster than traditional chlorine, they do not stay active in pool water for very long.


3. Deep end of the pool

Ozone and UV sanitation are less effective when a swimmer introduces contaminants into the pool water in the deep end of the pool. 

Summary of Ozone’s good properties


You find yourself wondering whether an ozone pool system is right for you. We understand.

Feel free to send us a message and we would love to guide you in the right direction.

When looked at the overall good properties of an ozone pool system we have put the below summary together:


  • Ozone leaves no chemical by-products in water

  • Ozone leaves no chemical taste or smell

  • Ozone will not burn eyes or make them red or irritated

  • Ozone will not irritate or dry out skin, nose, or ears

  • Ozone will not discolour or damage hair or clothing

  • Ozone adds no contaminants or by-products to water

  • Ozone rids water and air of unhealthy micro-organisms

  • Ozone is NOT a carcinogen



Contact us

Contact our friendly team to discuss how we can transform your pool and book a consultation.


Ph 03 9723 4740


Clear results for happy swimmers


“After having a salt water pool for several years we decided on the Clear Water Mineral System for our new pool. The controls are automated and simplistic to operate and adjust. My previous pool maintenance was complex and hard to understand.

The difference between the systems is chalk and cheese.   The pool has now maintained its appearance and balance for summer with only a little

buffer and diluted acid required. The water is fresh and always crystal clear.   No sore eyes and the scum line and white crystal marks are non-existent. I cannot recommend this system enough”.

Siobhan Law, Kew

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