Pros And Cons Of Water Filtration Systems In New Zealand

water filtration system Wellington Plumber

We all know that clean and safe water is essential for our well-being. 

At Paramount Plumbing, we are your professional plumbers in Wellington who understand the importance of maintaining high water quality in your home. One effective way to achieve this is by installing a water filtration system. 

In this article, we will examine the pros and cons of water filtration systems, their impact on water quality, the main types available, the best options in New Zealand, and the most effective and sustainable choices.


How Does Filtration Affect Water Quality?

Water filtration systems are designed to be a frontline defence against the impurities and contaminants that may be present in your water supply. 

They operate by using various physical and chemical processes to remove unwanted elements, resulting in cleaner, safer, and more desirable water quality here in Wellington.

Pros of Water Filtration:

Removes Contaminants

One of the primary advantages of water filtration systems is their ability to eliminate a wide range of contaminants. 

These can include common impurities like sediment, chlorine, heavy metals (such as lead and mercury), and harmful microorganisms (like bacteria and parasites).

Although the water in Wellington is treated, a filtration system gives you peace of mind that your water is of high quality year-round.

Removing these contaminants ensures that the water you consume and use for daily activities is of the highest quality and poses minimal health risks.

Improved Taste and Odour

Water filtration not only rids your water of harmful substances but also enhances its taste and eliminates unpleasant odours. This is particularly noticeable when drinking or cooking with filtered water. 

The absence of chlorine or other chemicals often results in more enjoyable water to consume and cook with, ultimately contributing to a better culinary experience.

Health Benefits

Clean, high-quality water is a crucial element for a healthy lifestyle. Filtration systems will reduce the risk of waterborne diseases by eliminating potentially harmful microorganisms and chemicals. 

And drinking purified water supports overall health and well-being, making it a wise investment in your family’s health.

Environmental Impact

When it comes to the environment, using a water filtration system can significantly reduce the need for bottled water. 

Therefore, by opting for filtered tap water, you contribute to environmental sustainability by reducing plastic waste and decreasing the carbon footprint associated with producing, transporting, and disposing of plastic bottles. 

This not only benefits your local environment but also has a positive global impact as well.

Cons of Water Filtration Systems:

Initial Cost

While the long-term benefits of water filtration are undeniable, it’s essential to acknowledge the initial cost involved. 

Installing a water filtration system may cost you more initially. This includes buying the system and having it set up by us, your professional Wellington plumbers at Paramount Plumbing. But remember, you should consider it an investment in keeping your family healthy and well.


Regular maintenance is required to maintain a water filtration system’s effectiveness. This typically involves changing filters or cartridges, cleaning components, and optimising the system’s functions. Maintenance costs, although ongoing, are a small price to pay for consistent access to clean, safe water.

Limited Contaminant Removal

Not all water filtration systems are created equal. The effectiveness of a system in removing specific contaminants depends on the type and quality of the filtration system chosen.

Some systems may excel at removing certain impurities while being less effective against others. Therefore, selecting a filtration system that aligns with your specific water quality concerns and needs is crucial.

Water filtration systems offer numerous advantages, including removing contaminants, improved taste and odour, health benefits, and a positive environmental impact. While initial costs and maintenance considerations exist, the long-term benefits far outweigh these drawbacks.

Ultimately, investing in a water filtration system is a proactive step toward ensuring that your family has access to clean, safe, and great-tasting water for years to come.

water filter pouring water into glass

The 3 Main Types of Filtration Systems

When it comes to water filtration, understanding the different types of systems available is crucial to choosing the right one for your specific needs. There are three primary types of water filtration systems, each with its own set of advantages and limitations:

Activated Carbon Filters:


  • Effective at Chemical Removal: Activated carbon filters are highly efficient at removing various chemicals, including chlorine, volatile organic compounds (VOCs), and disinfection byproducts. This not only enhances the taste and odour of water but also reduces potential health risks associated with these contaminants.
  • Improved Taste and Odour: These filters effectively eliminate unpleasant tastes and odours commonly found in tap water, resulting in more enjoyable water to drink and cook with.
  • Economical: Activated carbon filters are generally cost-effective compared to other filtration methods, making them a popular choice for many households.


  • Limited in Heavy Metal Removal: While effective at reducing chemicals, activated carbon filters may have limitations when it comes to removing heavy metals like lead or iron. Additional treatment may be necessary in areas with high metal concentrations.

Reverse Osmosis (RO) Systems:


  • Comprehensive Contaminant Removal: RO systems are known for their exceptional ability to remove many contaminants, including bacteria, viruses, dissolved minerals, heavy metals, and even some chemicals. They provide a high level of purification, making water safe for consumption in virtually all circumstances.
  • Enhanced Taste and Purity: The purification process employed by RO systems ensures that water meets strict quality standards and has a clean, crisp taste, free from impurities.


  • Wastewater Production: One of the drawbacks of RO systems is that they generate wastewater during the filtration process. This can be a concern in areas with water scarcity, as it may be seen as inefficient.
  • Removal of Beneficial Minerals: While RO systems effectively remove contaminants, they also eliminate beneficial minerals naturally present in water. Some consider this a disadvantage, although the impact on health is generally minimal.

UV (Ultraviolet) Purifiers:


  • Effective Microorganism Elimination: UV purifiers are incredibly effective at killing bacteria, viruses, and other microorganisms in water without introducing any chemicals or altering the water’s chemical composition. This is especially important for areas with microbiological contamination issues.
  • Minimal Chemical Alteration: Unlike some other filtration methods, UV purifiers do not add or remove chemicals from water, ensuring that it remains chemically unchanged.


  • Limited Physical Contaminant Removal: UV purifiers focus primarily on microorganisms and do not remove physical impurities like sediment or minerals. Therefore, they are often used in combination with other filtration methods for comprehensive water treatment.
  • Electricity Requirement: UV purifiers require electricity to function, which may not be suitable for all situations, especially in remote or off-grid locations.

In summary, these three main types of filtration systems offer unique benefits and considerations. Choosing the most suitable system for your home depends on your specific water quality concerns, budget, and preferences. Consulting with professional plumbers in Wellington can help you make an informed decision and ensure that your water is treated effectively to meet your needs.

Plumber Wellington, installing water filtration system

Best Types of Water Filtration Systems in New Zealand

In New Zealand, where water quality can vary regionally, selecting the right water filtration system is crucial to ensure your water is safe, clean, and enjoyable to use. Below, we explore some of the best types of water filtration systems for New Zealand households:

Whole-House Filtration Systems:


  • Comprehensive Coverage: Whole-house filtration systems treat water at the point of entry into your home, providing clean, filtered water for all taps, showers, and appliances. This ensures that every water source in your home benefits from improved water quality.
  • Effective Sediment Removal: New Zealand water sources may contain sediment and particulate matter. Whole-house systems often include sediment filters that are highly effective at removing these physical impurities.


  • Higher Initial Cost: When it comes to installing a whole-house filtration system, it usually involves a higher upfront cost compared to smaller, point-of-use systems.

Under-Sink Filtration Systems:


  • Dedicated Drinking Water: Under-sink filtration systems are designed to provide purified water specifically for drinking and cooking, making them ideal for improving the quality of water you consume directly.
  • Compact Design: These systems are typically compact and can fit conveniently under your kitchen sink, saving space.


  • Limited Coverage: Under-sink systems do not filter water for the entire house, so you may still need additional filtration at other water outlets.

Countertop Filtration Systems:


  • Portability: Countertop systems are portable and easy to install without needing plumbing modifications. This makes them a suitable choice for renters or those who prefer a non-permanent solution.
  • Effective Filtration: Despite their compact size, countertop systems can provide adequate filtration for improved taste and reduced impurities.


  • Limited Capacity: These systems may have smaller water storage capacities, requiring more frequent refilling.
  • Not Whole House: Similar to under-sink systems, countertop filters provide purified water only at a specific point of use.
  • Take up Bench Space: not ideal if you have limited space and like things to look neat and tidy.


The choice of the best water filtration system in New Zealand depends on various factors, including your water source, household size, and specific water quality concerns. 

Additionally, it’s essential to consider your budget and long-term maintenance requirements when deciding.

For a comprehensive assessment and expert advice tailored to your unique situation, please book a consultation with us at Paramount Plumbing, your professional plumbers in Wellington. We can recommend and install the most suitable water filtration system that aligns with your needs and ensures access to clean, safe water throughout your home.

The Most Effective Water Filtration System

The most effective water filtration system largely depends on the contaminants in your water supply. 

In many cases, combining filtration methods, such as a whole-house system with multiple stages, including sediment filters, activated carbon, and UV purification, offers comprehensive protection against various contaminants.

The Most Sustainable Water Filter System

For sustainability-conscious consumers in Wellington, Paramount Plumbing recommend looking for water filtration systems with the following features:


Long-Lasting Filters

Choose systems with filters that have a longer lifespan, reducing the frequency of replacements.

Energy Efficiency

Opt for systems that consume minimal electricity or none at all, like gravity-based filters or UV purifiers.

Minimal Waste

Look for systems that produce less wastewater during the filtration process, such as RO systems with water-saving technology.



In conclusion, the importance of water filtration systems in Wellington or anywhere in New Zealand cannot be overstated. These systems play a vital role in safeguarding your family’s health and enhancing the taste and quality of your water. As well as contributing to a more sustainable environment. 

While there are considerations such as initial costs and maintenance, the numerous benefits far outweigh the drawbacks. Selecting the right water filtration system depends on your unique water quality concerns, household size, budget, and preferences. 

To make an informed decision and ensure that your water is treated effectively, we highly advise you to consult with us at Paramount Plumbing, your professional plumbers in Wellington. 

We possess the expertise to assess your specific situation and can recommend the most suitable filtration system, as well as provide a professional installation, ensuring that you and your family enjoy the many advantages of clean, safe, and great-tasting water for years to come. 

And with the right water filtration system in place, you can take a proactive step toward a healthier, more enjoyable, and environmentally responsible lifestyle.

Talk to us now at Paramount Plumbing about how we can help you with your water filtration needs.

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For any enquiries, please phone or email us at:

  • 0800 02 72 72
  • 022 642 0995

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