We are often asked which water filters a person should choose for their home, office, B&B or other business in Christchurch, Tauranga, Auckland and other great spots in NZ. We thought a blog answer might be easier so everyone has the details in writing. Right, let’s jump in with a splash! 

What Water Filter Should I Use?

Nowadays, there are a lot of great water filter models and systems available so it is understandable that you might be unsure of which one to choose. Start your process by making a list of what you need filtered water for now and in the future.

For example:

  • Is filtered water your only priority?
  • For one or two people? Will there be more people e.g. kids in the next few years?
  • Or do you want to filter your shower and cooking water so that contaminants don’t get onto your skin or into your food? 
  • Will you also want your clothes washing water filtered so heavy metals don’t settle on them or in the machine?

Now that you have those answers, you can move on to the next pool of information.

What Are The Different Types Of Filters For?

Filters use different filtering methodologies such as carbon, reverse osmosis or distillation. The 5 most widely used water filters are as follows:

Faucet Water Filter 

This inexpensive option supplies healthy drinking water, is easy to set up and can filter your cooking water as well.

Refrigerator Water Filter 

This supplies healthy drinking water to your refrigerator’s water and ice dispenser so clean ice can go into your guest’s especially requested Evian water. Whisky connoisseurs swear by filtered water for ice in whisky. 

Shower Filter

Did you know that you absorb the chlorine in your council water via air and your skin. By filtering out chlorine, you should get softer skin and hair. Medical research is indicating that filtered shower water supports a healthier immune system.

Whole House Filter 

You can filter your council water before it reaches your home’s water pipes, preventing chlorine in the air and on your skin BUT they do not remove as many contaminants as a drinking water filter. Add a faucet filter to finish off the system.

Under Sink Filter 

An under-sink system is a real space saver and doesn’t need refilling like jug filters. Get potable water for drinking and cooking 24/7 and change the filter every few months. It can also be fitted in your bathroom cabinet so that drinking water there is pure.

Countertop Water Filter 

These filters are ‘plug and play’ and don’t need a plumber to install them. The system is easily connected to your waterline and gives you drinking and cooking water all day. 

Installation and Maintenance of Water Filters

Choosing a water filter often starts with its installation. Easy-to-install options are available. They usually don't need tools or professional help. Examples are jug filters or faucet attachments. These are good for renters or those who move often.

On the other hand, some filters need a professional. Think about under-sink or whole-house systems. They are complex. A plumber usually installs them. This ensures everything works right from the start.

Here are key points to consider:

  • DIY Filters  Simple to set up. Follow the manual. No special tools needed. They are less invasive. Perfect for quick use.
  • Professional Installation: Best for complex systems. Ensures safety and efficiency. May cost more initially but offers reliability.

Before choosing, think about your home. Do you rent or own it? This might affect your decision. Also, consider your comfort with DIY tasks. If you're handy, simple filters might be enough. If not, or if you want a robust system, consider professional installation.

Environmental Considerations and Sustainability of Water Filters

Every filter has a lifespan. After that, it becomes waste. Pitcher filters, faucet filters, and under-sink systems all have parts you must replace. The waste differs by type. Pitcher filters create less waste but need frequent changes. Whole house systems produce more waste per change but last longer. Think about this trade-off. Disposing of old filters is key. Check if the brand offers recycling programs. Some do. They take back used filters to reduce landfill waste. If not, find local recycling options.

Energy Consumption

Some filters use energy. Reverse osmosis systems, for example, need power. Others, like pitchers, do not. Consider the energy use of each type.

Filters with lower energy needs are often more sustainable. They reduce your carbon footprint. Look for energy-efficient models. They perform well without using much power.

Sustainable Choices

Some brands focus on sustainability. They use eco-friendly materials. They might offer recycling programs. Or their products might be more energy-efficient.

Reverse Osmosis

This system is highly effective but, as with all top performers, the filters are pricey and they waste water. You use 300% more water to get your required litres. The flow rate is low and it relies on electricity. It unfortunately also removes elements that are beneficial for your health like good minerals. 



In choosing a water filter, consider installation, waste, energy use, and sustainability. Easy-to-install options offer convenience. Professional setups ensure efficiency. Each type of filter produces different waste. Opt for those with recycling programs. Consider energy needs. Lower energy filters reduce carbon footprints. Sustainable brands often offer recyclable parts and eco-friendly materials. Your choice has an impact. It affects water purity, health, and the environment. Opt for a filter that meets your needs and aligns with your values. This leads to clean water and a healthier planet. Make an informed choice for a better tomorrow.