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Ozone Tank Water Treatment

Ozone tank water treatment – effective pollutant removal for over 100 years

Water has long been disinfected with chlorine and UV rays, but ozone also reliably kills germs. The so-called ozone tank water treatment is an effective way to treat water and, at the same time, eliminate pathogens and contamination. However, this technology has been used to treat drinking water in Europe since the early 1900s and in North America for the past three decades. Timaru, Whanganui, Oamaru, and Takapau are leading ozone water treatments in New Zealand.

The AquaZone Ozone System harnesses the power of ozone to solve common tank water problems/rain harvesting issues associated with ground, surface and roof water.

AquaZone Ozone System – the silver bullet against bacteria & germs in your tank water

Have you got stinky tank water? Does the tap water smell like rotten eggs? If your water smells like sulphur (rotten eggs), it is due to hydrogen sulphide in your tank water.

Is your tap water murky? Does your drinking water taste foul or musty? Rotting leaves could cause this in your water tank. If your tap water tastes bad or smells foul, there are pollutants, bacteria or other contaminants in the water tank and, thus, in your drinking water.

Therefore, an AquaZone Ozone system will continuously treat, condition and filter the entire contents of your tank water using ozone as an effective, economical and proven technology. 

Best water tank ozone system

Aqua Works offers you the latest methods for ozone tank water treatment. Thus, call us today for an onsite visit to discover the benefits of AquaZone Ozone Systems for rain harvesting system.

Tank water disinfection with ozone water treatment

Roof contamination

Roof water often contains faecal and urine deposits from birds, possums, rodents and tannins from decaying organic matter. Ozone kills coliform bacteria on contact more effectively than chlorine or bromine. Additionally, it treats fungus, mould and yeast spores. However, most household water filters do not remove chemicals, viruses or bacteria.

Agricultural spray drift

Spray drift in agricultural areas poses a severe risk to roof or groundwater – potentially contaminating these with pesticides and glyphosate. For this purpose, ozone is very effective in neutralising these contaminants – a particular benefit to people with compromised immunity.

E. coli ozone tank water treatment
non potable water

Water delivery service

Water deliveries from a contractor may unknowingly contain coliforms if the source bore/aquifer is contaminated, as in Havelock North and Christchurch, NZ. Consequently, ozone is an easy, natural defence system – allowing you to drink quality water straight from your tap.

Groundwater pollution

Groundwater from a bore, stream, spring, well, or dam usually contains more contaminants such as hydrogen sulphide, excess iron, manganese and other metals. Thus, ozone removes these through a natural process known as micro-flocculation without chemical additives.

Effective, residue-free alternative to chlorine

There are various technologies to disinfect water and make it safe for human consumption. The use of UV light or the addition of chlorine is widespread. However, UV radiation does not penetrate long pipe systems, and chlorine leaves an unpleasant taste. Therefore, ozone as a disinfectant is an effective and residue-free alternative as it quickly degrades back to normal oxygen.

It neutralises pH by aeration and precipitates heavy metals. Simultaneously, it removes colour and odour, leaving healthy oxygenated water. In addition, the technology delivers several less apparent benefits – the reduction or elimination of scale and mineral build-up within plumbing fittings, pipes and water heaters. Hence, it leaves showers, sinks, bathtubs, and toilets stain-free.

dental caries fluorids

AquaZone Ozone System

Ozone tank water treatment is the most effective way to treat water while simultaneously removing pathogens and contaminants. AquaZone Ozone Systems supports you to enjoy pure, healthy water from every tap in your home.

Ozone water treatment – How does it work?

How does ozone purify water?

Ozone is oxygen (O) with three atoms (O3) instead of two atoms (O2). Therefore, it consists of three oxygen atoms, “O3”, with a high oxidation potential. In chemistry, this property means that the gas is particularly “reactive”. This is because its third atom “steals” an oxygen atom from everything that comes into contact with ozone. Thus, ozone is one of the strongest oxidants of all and is used in water treatment worldwide.

Since it is not water-soluble, ozone reacts with the pollutants in the water. This process is called ozonation. The oxidation process destroys unwanted contaminants such as viruses, bacteria or other pathogens by causing the disintegration of their cell membrane.

Ozone binds toxic components

Although its oxidative properties are powerful, the lifetime of ozone is very short. As soon as it comes into contact with viruses, bacteria, odours, these are destroyed by the extra oxygen atom in the ozone! During ozone water treatment, the cellular components of the bacterial cell walls of all harmful substances in the environment are oxidised. As soon as the ozone has reached the individual cells, it oxidises all components – what remains is pure oxygen.

In addition, ozone disinfection has clear advantages over the conventional and frequently used chlorine disinfection of water. In addition, this type of water disinfection also decomposes other substances that react with oxygen. These include all human substances, organic substances, pesticides, cyanides, phenols, or even gases such as hydrogen sulphide.

AquaZone System ozone atom
AquaZone system ozone process

AquaZone Ozone System

AquaZone Ozone System is a two-component water treatment system. The first module is the water ozone generator with an integrated air pump outside of your water tank. The second module is a diffuser with a washable filter element placed in your water tank. The ozone generator’s output is fed by tubing to the diffuser, generating millions of ozone-saturated bubbles inside the filter element and released in your drinking water.

How does it work?

As these bubbles rise inside and exit the filter module, the ‘friction’ resulting from them moving through the water draws more than 50,000 litres of water through the filter in 24 hours – removing oxidised particulates, capturing existing debris and preventing it from accumulating on the bottom of the tank. This method of filtering the water before ozonation is key to increasing the ability of the ozone to be absorbed by the water.

Safe water with Aqua Works

As the ozone bubbles ascend through the water in the tank, they continue the ozone saturation process. The AquaZone Ozone system then filters oxidised material. What remains is healthy, clean drinking water, ideal for all your domestic water uses. Thereby, the electricity costs are only about $7.50 per month. Ozonation protects you and your family against virtually all toxic and harmful unwanted bacteria, germs, viruses, fungi and protozoa.

Innovative ozone water treatment technology

Do you want to enjoy crystal clear and healthy drinking water? The AquaZone Ozone system is the smart answer for your tank water issues. Our ozone tank water treatment system treats, conditions and filters your tank water.

Aqua Ozone system contaminants from groundwater

AquaZone Ozone Systems eliminates unwanted impurities in tank water

AquaZone Ozone systems is a high-quality water disinfection technology to purify tank water. In some cases, an additional water purification method is necessary. However, an ozone system can easily be combined with other water treatment technologies, such as UV irradiation, to ensure the required drinking water quality.

Aqua Works has many years of experience with established UV treatment and chlorination technologies to guarantee clean drinking water. Find out which technology is needed for your water conditions to achieve healthy and safe drinking water.

Ecoli bird poo

Contaminants in your drinking water

Iron, Manganese and other metals…

…stain laundry and household fixtures. Furthermore,  they also give an unpleasant taste and odour to the water. Oxidation and filtration can remove these heavy metals.

An AquaZone Ozone system oxidises and flocculates these heavy metals, filtering them out of the tank water so you can enjoy pure, healthy water from every tab of your home.

Hydrogen Sulfide

Does your tap water smell like rotten eggs? consequently, oxidation and aeration will remove this unpleasant odour from your drinking wate.

An AquaZone Ozone system rapidly oxidises the sulphides in the water to sulphates and keeps the water fresh through constant ozone aeration, removing this offensive gas smell.


…is the measurement of the acidity or alkalinity of the water. A reading between 6.5 and 8.5 is acceptable for the EPA (US Environmental Protection Agency).

An AquaZone Ozone System will raise a low (acidic) pH of the water if the cause is carbon dioxide gas in the water. The constant aeration of the water removes CO² gases.


Ozonation, reverse osmosis, chlorination or activated carbon filtration eliminate colour in form of tannins. However, we do not recommend using chlorine as it is considered to create THM (Trihalomethane), a carcinogenic by-product of chlorine.

An AquaZone Ozone system oxidises and removes most tannic substances from your tank water. Unfortunately, some of them are difficult to eliminate with this method. As these tannins are ozone resistant, a different water treatment method needs to be chosen.


…in the form of dissolved calcium, lime and magnesium can reduce the lifespan of your hot water systems. At the same time, it causes an increase in demand for soaps and cleaning agents for everyday domestic tasks. A water softener can remove the hardness by replacing the dissolved minerals with sodium or potassium.

An AquaZone ozone system changes the molecular bonding ability of the hardness constituents. As a result, it reduces the surface tension, and the water feels softer. Additionally, this is an advantage to the initial purpose of the oxidation and filtration capacity of this ozone tank water treatment system.


…of tank water caused by oxidised metals can be easily removed with the AquaZone ozone system. However, the use of sand filters helps to reduce turbidity in the tank water caused by debris, sludge or colloidal clay.

We do not recommend an AquaZone Ozone system for tank water containing large debris, sludge or colloidal clay. If the tank water is too contaminated, the ozone will be diverted from its primary purpose and use all its energy to remove the contaminants.


Mineralised water containing sodium, carbonates, chlorides, sulphates, amongst other dissolved solids, can not apply AquaZone Ozone. This mineralised water category can only be eliminated by the chemical process of iron exchange or reverse osmosis technology.

An AquaZone Ozone system will not eliminate dissolved solids in this category.

Bacteria, germs and other pathogens

…like E.Coli Bacteria, Faecal Bacteria, Cryptosporidium, and other primary contaminants in tank water pose a significant health risk.

An AquaZone Ozone system is a tank water treatment but not a complete purification system. If you have a severe pathogen problem, contact Aqua Works as a  UV filter may be required also.

Ozone water treatment NZ

AquaZone Ozone water treatment system ensures that your water is safe and potable to drink to keep your family safe. Enjoy pure, healthy and tasty water from any tap in your home with smart product solutions from Aqua Works.

Water is the elixir of life and our passion

Exceptional support for our water filtration customers

20+ years of experience in Rodney means Aqua Works is your local water filtration expert. Our knowledge of the community and the region we live in, combined with our passion for clean drinking water, is the foundation for our daily work. We offer customised water solutions supporting you to meet your personal needs and individual budget. Our connected, smart product range enables you to master the water in your home. At the same time, it ensures the best purification of your water for healthy, tasty water enjoyment.

As a purpose-driven, local family business, we support you in your decision making by sharing our knowledge about your water resources. This way, we help you to be informed, so you can make great decisions empowering your families health and well being. The protection and provision of safe, potable drinking water in our lives is paramount to all of us. Aqua Work’s water filtration systems, UV filter purification, water treatment, ozone systems, and water pumps give you peace of mind to have a quality trusted, safe system. 

Going the extra mile at Aqua Works is what we do to ensure your water is healthy and fit for its purpose. Hence, all our water treatment products are field tried-and-tested, including innovative products and solutions. Do you need help with UV filters, water filtration systems and water pumps or our high-quality UV filter service, water pump repairs or water pump service? Give us a call today at 0800 AQUA WORKS. As we often say, “If you don’t have a filter – You are the filter”.

And if something happens spontaneously, call our 24/7 water pump emergency service at 0212 787 427. We will take care of your problem immediately and make sure that the water in your home is running again as quickly as possible.

just take
our word
for it…

“Steve installed our pump & UV light some 6 years ago now and Karl comes to do the servicing. In summer, the pump stopped working. Steve responded sharply and came out very quickly. Whew. It was due to the drought and the ground shrinking – cracked a valve. It was great to have someone knowledgeable and experienced in these matters attending. Both are always on time or else communicative when running late. They go about their job professionally, leave things tidy and always do a good job. We are happy with their service and will keep using them. We can highly recommend them.” 

Karoline Kwok, July 2020