Rainwater Filtration Systems in New Zealand

Climate change may impact water in soil, glaciers, lakes and rivers across much of New Zealand (Ministry for the Environment). The 2020 drought, which led to water restrictions for several months in parts of the country, revealed just how vulnerable centralised water systems can be. To meet the challenges ahead, sustainable water solutions are becoming essential.

With decades of expertise advancing innovation in the water filtration industry, Billi is at the forefront of providing these solutions. Our advanced filtration systems, including models certified by Global GreenTag, are designed to make common contaminants in mains or rainwater safe for consumption.

Water Scarcity in New Zealand

Longer dry periods and unpredictable rainfall are making water scarcity worse in cities like Auckland and Wellington. Building reservoirs or desalination plants is costly compared to adopting targeted policies that encourage a change in individuals behaviour (Prevention Web). Although rainwater collection is an effective household solution, cutting water bills and pricing incentives on municipal systems is key to encouraging users to conserve water.

Benefits of Collecting Rainwater

Rainwater collection is legal and encouraged across New Zealand, with councils like Gore requiring tanks for new builds to help reduce municipal water demand and improve stormwater management.

Benefits of collecting rainwater include:

• Less pressure on municipal supplies as rainwater use reduces demand on city systems.
• Improved stormwater management. Capturing rainwater helps prevent runoff, reducing flooding and erosion.
• It also increases resilience to environmental factors and provides more water for targeted environmental and agricultural work.

However, untreated rainwater isn’t always safe for drinking or household use due to contaminants such as sediment, heavy metals and organic impurities. This is where advanced filtration comes in.

Billi’s Advanced Filtration Technology

Billi’s Fibron XC® 0.2-micron filters remove contaminants like sediments, chlorine, and heavy metals with 98.93% efficiency, ensuring safe household water. These systems also use Eco-Intelligence Technology and heat exchange to optimise energy consumption, providing both efficiency and reduced costs for households. Plus Billi’s compact designs fit easily under kitchen sinks without requiring extra ventilation, saving space and reducing installation costs.

Moving Toward Sustainable Water Solutions

As water challenges grow, rainwater filtration is a reliable, practical way to access tasty and potable water. Billi specialises in under-sink filtration, offering targeted benefits for drinking and cooking without the complexity of whole-house systems.

Choosing Billi ensures clean water, cost savings, and supports sustainable living by reducing resource consumption. Explore our residential options or contact us for more information on our effective filtration solutions.