UV Ozone Blog

UV Ozone Advanced Water Treatment Systems

UV ozone advanced water treatment systems take pool sanitization to the next level. In collaboration with chlorine, the ultraviolet light and ozone gas combine to deliver an unmatched level of pool water purity.

Hayward’s UVO3 system eliminates nearly all chlorine-resistant microorganisms while reducing overall chlorine use by at least half. Enjoy additional health and safety benefits, and reduce chlorine use in your pool. Add a UV ozone advanced water treatment system to your traditional chlorine or salt water sanitized pool and spa.

Powerful Duo: UV and Ozone

UV and ozone are a powerful duo in battling chlorine-resistant microorganisms in your pool.

Ultraviolet (UV) light is a well-known water sanitizer. As the sun shines on your pool water, ultraviolet light is at work killing bacteria and other harmful microorganisms. However, the sunshine does not penetrate deep into the pool water, so we cannot solely rely on it to sanitize.

Ozone gas is another powerful water sanitizer. When ozone gas is pumped into pool water, it comes into contact with chlorine-resistant microorganisms and kills them before the gas rises to the surface. However, the ozone gas doesn’t come into contact with all the germs, so it’s not fully effective on its own either.

When ultraviolet light and ozone gas are combined in a UV ozone advanced water treatment system, the sanitizing results are quite powerful. In fact, Hayward’s UVO3 system eliminates 99.9% of chlorine-resistant microorganisms in your pool water and they reduce the need for chlorine use by 50% or more.

What is a UV Ozone Advanced Water Treatment System?

UV ozone advanced water treatment systems are supplemental to your primary sanitization system. Whether your pool water is sanitized with a traditional chlorine system or a salt chlorine generator system, you can get even cleaner and clearer water by adding a UV ozone advanced water treatment system.

Hayward HydroRite UVO3 Advanced Water Treatment system is a supplemental disinfection system that delivers a level of water purity unmatched by any other swimming pool sanitization method. This supplementary sanitization system releases a powerful trio of disinfectants – UV, Ozone and Advanced Oxidants – that work synergistically in pool water to inactivate chlorine-resistant microorganisms.

HydroRite UVO3 premier sanitization works in collaboration with chlorine to dramatically reduce overall chemical usage and even lessen total chlorine demand by 50% or more. It’s a more natural way to sanitize your pool or spa for a worry-free swimming experience. In addition, it’s friendly to both the environment and your wallet.

HydroRite UVO₃ reduces chloramines by 50% or more to eliminate harsh chlorine odors and reduce irritation to swimmers’ skin, eyes, and respiratory tract. With HydroRite UVO3, you can feel especially good about the quality of your pool and spa water.

How Do UV Ozone Advanced Water Treatment Systems Work?


The Hayward HydroRite UVO3 Advanced Water Treatment system is a supplemental disinfection system that works in conjunction with your pool’s traditional chlorine or salt water sanitization system.

  1. HydroRite UVO3 injects disinfecting ozone gas into your pool’s chlorinated water just upstream of the main reaction vessel.
  2. The ozone-treated water is then exposed to potent, ultraviolet rays as it passes through the main reaction vessel. The UV light breaks down chlorine-resistant microorganisms – like algae, bacteria, and viruses – rendering them inactive.
  3. Ozone collides with the UV light and a reaction occurs that creates highly potent hydroxyl radicals.

Together, these three disinfectants work synergistically to inactivate more than 99.9% of chlorine-resistant microorganisms, providing an entirely new level of safe water quality.

Advantages of the Hayward HydroRite UVO3

  • Space-saving – HydroRite UVO3 has a compact design with a single vessel and controller that install easily into new or existing pools.
  • Standard Installation – HydroRite UVO3 installs directly into conventional 2-inch diameter plumbing piping for residential and commercial pools and spas.
  • Superior Water Quality – HydroRite UVO3 delivers a level of water purity unmatched by any other swimming pool sanitization method, eliminating 99.9% of chlorine-resistant microorganisms. The advanced water treatment system combines 3 powerful disinfectants to deliver exceptional sanitization and the finest level of water clarity and purity.
  • Reduces Chloramines – HydroRite UVO3 cuts chloramines by 50%, eliminating chlorine odors and maximizing swimmer comfort to provide a more pleasant swimming experience.
  • Cost Saving – HydroRite UVO3 reduces overall chemical usage and chlorine demand by 50% or more, cutting overall chemical costs. It also extends the life of salt chlorination systems.
  • Natural and Environmentally Friendly – HydroRite UVO3 reduces overall chemical usage to provide a more natural, environmentally friendly sanitization method.
  • Exclusive – Hayward HydroRite UVO3 is an EXPERT LINE product, available exclusively through pool professionals.
  • Innovative Technology – HydroRite UVO3 supports the Model Aquatic Health Code (MAHC) for use as a supplementary disinfection system.

Give your pool a BIG boost with a Hayward HydroRite UVO3 Advanced Water Treatment system. Gain additional health and safety benefits and reduce chlorine use in your traditional chlorine or salt water residential or commercial pool and spa. Learn more about the benefits of Hayward HydroRite UVO3, by contacting your local Hayward Pool Professional.