How we do what we do

Because every site is unique, Hydrozone systems are bespoke by nature. We look at the big picture and design our systems to solve the unique problems each site presents. This could be water table levels, hard ground, hilly terrain or how to best discharge treated wastewater in tricky locations.

We go out of our way to solve the most challenging of wastewater issues to deliver a system that will more than adequately handle the needs of a site and the people who use it, supplying a system that will give years of trouble-free service.

Thorough site assessment

We conduct a thorough assessment of your site. This includes assessing soil types, number of users, who else is in the vicinity and other factors. This makes Hydrozone ideal for all sorts of applications, including residential homes, commercial buildings, factories, schools, rest homes, maraes, campgrounds and others.

Made in NZ

All systems are designed and manufactured in New Zealand. Depending on the client’s needs and the site, tanks are either concrete, fibreglass or polyurethane.

The systems are suitable for domestic and commercial, rural and urban use. Depending on the number of users, the treatment systems can be designed to process 800 litres per day, up to 50,000 litres.

At Hydrozone, innovation is ongoing. We’re always thinking of new ways to improve the systems we install.  Over many years, we have refined our systems to overcome problems and enhance their performance.

Hydrozone systems use an innovative recirculating packed-bed biofilter (RPB) made of coconut fibre that enables aerobic advanced secondary treatment of wastewater. It is an efficient, low cost system researched and developed by Hydrozone. This biofilter means that treated wastewater can be discharged onto land via a dripperline. Other Hydrozone innovations include:

• Pumpless system = low energy costs

• Minimal moving parts = low maintenance

• Odourless operation = no unpleasant smells

• Lighter tanks = easier and cheaper to transport. Easier to lift into place (only need a digger; no Hiab)

• Simplicity of design = anyone can install one

Over the last two decades Hydrozone has designed, built and supplied dozens of custom-made systems on almost every conceivable type of site, right across the country. We are passionate about our products and industry, and are easily one of New Zealand’s most experienced biofilter sewage treatment experts.

Hydrozone is passionate about what we do. Properly treated waste water and clean waterways are part of the company’s ethos. We strive to do the right thing by the environment and for councils. Our aim is to give people a reliable, purpose-designed system at a reasonable cost because we believe strongly that every installation should result in a win-win outcome for everybody. You’ll find our pricing is fair, and we will tell you honestly if we can’t install a system for your budget.

The design and build quality of the treatment systems are also a reflection of our integrity, featuring proven technology that delivers robust, reliable performance for years and years. Hydrozone systems meet New Zealand standards and have been independently tested by a national testing facility, passing with excellent results.

• TSS                  A+

• BOD                 A+

• Nitrogen          A

• Power               B

• Coliforms A

Water pollution is an increasing concern in New Zealand. Human waste is part of the problem and is a suspected cause water pollution due to the incorrect disposal of this waste.

A nationwide Colmar Brunton poll conducted for Fish & Game New Zealand in December 2018 has revealed pollution in the country’s rivers and lakes is worrying Kiwis more than any other issue. It showed that 82% of people surveyed were extremely or very concerned about the issue. (stuff.co.nz Jan 02, 2019)

Septic tanks can leach, leading to soil contamination on the property. This poses a risk to residents, especially children who are playing in the backyard. Some areas have high water tables or are near water courses. Many communities rely on aquifers and rural properties rely on bore water. This makes water contamination a real problem that affects us all. It can even make us sick.

Clean enough for discharge onto land

A Hydrozone system cleans up wastewater so well it is suitable for discharge in areas with high water tables and around watercourses. This means Hydrozone systems can be an important part of the solution to clean up New Zealand’s water and waterways, something that is very important to us at Hydrozone. Hydrozone systems also make properties safer for families and their children.

By effectively treating wastewater before it is returned to the water cycle, we are helping Kiwis play their part in improve the health of New Zealand’s precious waterways.