How Does a Hot Tub Ozonator Work?

Among the recent introductions in hot tub technologies, the use of a hot tub ozonator has become very popular. Hot tub ozonators have distinct advantages over the use of conventional water sanitization methods that use chlorine or bromine. Ozone doesn't cause allergic reactions like these chemicals and is a much stronger water-cleaning agent. It is essential that you have a basic understanding about the functioning of a hot tub ozonator before purchasing it. 

Understanding Ozone Use in Ozonators

Ozone is a gas, naturally found in the upper reaches of our atmosphere. It is largely used as a bleaching agent in textile industries. It is also used by many water-sanitizing companies to sterilize public drinking water, i.e. for the removal of microorganisms and unpleasant flavors. Being a powerful oxidant, ozone is an effective and instant water purifier. Ozone is known to breakdown body oils too, helping to remove chronic odors often found in hot tubs. Ozonated water doesn't need to be repeatedly changed, as it remains fresher over a longer period. Unlike commercial hot tub chemicals, ozone does not have an obvious taste or color. Further, ozone doesn't leave any residues or by-products that could stick to the surface of the tub or choke the hot tub filter. On an average, ozonator-treated tub water doesn't need to be changed for about 7-to-9 months. 

Understanding Ozonators

Ozone can be artificially produced by passing ultraviolet rays or electrical discharges through the oxygen molecules present in water. An ozonator is essentially an ozone-generating mechanical device that is installed within the hot tub. 

Ozonator Types

There are two basic types of ozonators. The common type is called a bulb-type UV Ozonator. It uses an ultraviolet light bulb for creating ozone. Most UV bulbs last for about 2-to-3 years, and therefore needs periodic replacement. The other type is called an Electric Ozonator. This is the more popular ozonator, needing only negligible replacement of any component. Instead of using a UV bulb, it functions through passing a controlled electrical discharge through the oxygen molecules to stimulate the formation of ozone. The electrical circuit is configured in a safe manner and it poses no harm to the hot tub’s occupant. In both the ozonators, the ozone gas passes through an airline from where it is sucked into the water jet that eventually pours out into the tub. In some hot tubs, a separate ozone jet outlet is present on the bottom surface, as a designated ozone jet outlet. These higher-end ozone outlets are also called ozone injectors. The injectors infuse ozone in the tub water with greater pressure, raising the ozone concentration in the water.

Water Temperature & Ozonator

Extreme variations in the water temperature can severely deplete the amount of ozone produced and retained in the water. As a result, every hot tub ozonator specifies a temperature limitation as far as the maximum temperature at which it can effectively produce ozone gas. Some advanced ozonators have an in-built temperature setting for ensuring that the tub water is constantly maintained at a particular temperature. Maintaining the suitable temperature also raises ozone’s effectivity in dissolving minerals that are often found in hard water.