Anatoliy Gromov https://unsplash.com/@agromov

Black Max Ozone Generators – About


The Australian-made Black Max Ozone Generators were first introduced to the hydroponics farming industry by Gary Davies in 1998, at a time when many farmers were unaware of the benefits of using ozone to purify their water.

Since then hydroponic farmers and hobbyists, plant nurseries, orchid growers, organic produce growers, vertical gardens manufacturers, car wash manufactures, pet boarding kennels, fish farms, Koi pond hobbyists, bakeries, drinking water suppliers, odour control consultants, float tank treatment therapists, swimming pool and spas owners, plus numerous other customers have all reported the great results they have achieved using our Black Max ozone systems.

Ozone is one of the most effective bactericides known to science. The use of ozone in hydroponics farming has now become very well recognised for its effectiveness in helping to control waterborne diseases, viruses, fungi, pathogenic bacteria, E.coli etc. that can rapidly grow and contaminate a water tank or nutrient mixing tank, a drinking water supply, or any industrial process that requires purified water.

Black Max ozone generators are constructed from powder coated marine grade aluminium for an exceptionally long lifespan. The heavy duty design, unrivaled build quality, and proven results achieved over the past 27 years make the Black Max ozone systems the most reliable, efficient, low maintenance and affordable solutions for use in hydroponics farming, and numerous other commercial and industrial applications.

The Black Max BM1 and BM2 ozone generators use very high quality UV (Ultra Violet) ozone producing lamps, operating at a precise frequency, to produce extremely pure ozone. This is completely different from the more common CD (Corona Discharge) ozone generators that produce ozone using electrical arcing between two metal grids. With a CD ozone generator the ozone could potentially become contaminated with Nitric Acid, especially in a high humidity environment, but this is never a problem with Black Max Ozone Generators.

Black Max direct ozone systems are used for many industrial applications.. For example to treat the water that is recirculated in a vehicle washing bay. The water that is used to wash the cars gets very dirty, but is then returned to a holding tank for reuse on the next car. This dirty water must be sanitised to control the bacterial load, and also prevent the unpleasant odours that would develop or intensify without the Black Max ozone system installed.

On a hydroponic farm, disease causing microbes can greatly reduce plant growth and yields, or even destroy a whole crop. A Black Max ozone system purifies water by directly injecting ozone into the storage tank water and/or nutrient solution tank. In a plant nursery the ozonated water, or the ozonated water/nutrient solution, greatly helps to keep plants healthy, whether watering overhead or at the base of the plants.

In a typical Black Max ozone treatment system, the injected ozone concentration in a water tank will naturally adjust, so that once the water has been purified any excess ozone will simply gas off through the water. Some of the ozone in the water tank will naturally break down into oxygen, which will super-oxygenate the water.

In a hydroponic farm situation, the abundant oxygen in the holding tank water, and/or the nutrient solutions tank water, will promote rapid healthy root development and plant growth.. leading to higher yields.

The injected ozone is not harmful to beneficial aerobic bacteria that thrive in an oxygen rich environment, and Black Max ozone systems are ideally suited to organic farming as no chemical residues are created or left behind when the system is turned off.

Ozone has also been proven to be safe as part of a process to purify bottled drinking water.. “Ozone has been granted GRAS status, ‘Generally Regarded As Safe’, by the US Food & Drug Administration (FDA)”.





Protected Cropping Australia (PCA), previously called Australian Hydroponic & Greenhouse Ass. (AHGA), publish a quarterly industry trade magazine called Soilless Australia. In the 2010/vol. 1 edition, and the 2011/vol. 4 edition, there are articles by Graeme Smith entitled Waste Water Recycling.. Closed vs. Open Hydroponic Systems.

In these very informative articles, Graeme points out the benefits of waste water recycling in hydroponic farming, in particular by converting current free draining (open) feed water systems, to full recycling (closed) systems.

He concluded that this process greatly reduces a farms impact on the natural environment, by converting a hydroponic farms waste-stream, into a revenue-stream.

He estimated that this process can reduce a farms production costs with an average savings of 40% of water usage, and 60% of fertilizer usage. This equates to average annual savings of approx. $15,000 for every 4,000m2 greenhouse system.



Black Max BM2W ozone systems installed at a hydroponic farm in South Australia. This very successfully farm grows quality asian greens, including coriander. The farm owner has reported that he’s had no more water-borne disease issues since installing the Black Max ozone systems throughout his extensive farm. Note the Megazone injector manifold used in both of these systems, in conjunction with a MultiCyclone water filter, which in these systems is mounted on an optional stands for an easier and more stable installation.

For more information, or to purchase Black Max ozone generators, Black Max ozone systems & MultiCyclone water filters, click here Contact Us



NOTES: Always read and follow the Black Max operating instructions before using any Black Max ozone generator or Black Max ozone system, and follow OH&S (Occupational Health & Safety) guidelines relating to your specific application. When using a Black Max ozone system to purify a tank of water in accordance with these instructions, the ozone generated will break down into oxygen as it purifies the water. If the water tank is located in the open air or in an area with adequate ventilation, any residual ozone that may gas off through the water during this process would normally safely dissipate into the open air. Please refer to the Black Max operating instructions for further information regarding additional ventilation options if required. For reference, during a thunder and lightning storm the naturally occuring “clean fresh air smell” of ozone can often be observed in the air.

WARNINGS: Do not look directly at the UV (Ultra Violet) lamp that is located inside the outer casing of a Black Max ozone generator. There is a small window located in the outer side slide panel that glows blue to safely see when the internal ozone lamp is operating. Do not operate the ozone generator with this side slide panels removed, and never expose eyes or skin to the ultraviolet light emitted from the internal UV lamp that is housed behind this side slide panel. Ensure that no staff or animals are exposed to any very high levels of ozone that could possibly build up in the air while using a Black Max ozone system inside of a fully enclosed space without adequate ventilation. If required contact Black Max to purchase an ozone monitor that can be used to verify the actual level of ozone present in the air within any enclosed space.