Learn how to choose a water filtration system, remove contaminants, and get clean drinking water with the right setup for your home.
How to Choose a Water Filtration System: A Guide


Clean water is essential in every home, supporting daily tasks like drinking, cooking, cleaning, and bathing. While tap water may appear clear, its quality can vary depending on your location and water source, and it may still contain unwanted substances.
This is where filtration systems come in. They help improve water quality and make it safer for everyday use. If you’re considering installing one, it’s important to understand your household needs and the different options available so you can choose the right solution.

Why Water Filtration Matters
Water can contain hidden contaminants such as chlorine, heavy metals, sediment, and volatile organic compounds (VOCs). Some of these affect the taste and smell of your water, while others may have long-term health implications if left unfiltered.
A reliable filtration system helps remove these impurities, improving both safety and overall quality. It can enhance the taste of your drinking water, reduce unpleasant odours, and give you more confidence in the water you use throughout your home.
Understand Your Water Source
The first step is to know your water source.
Your water may come from:
- City water supply - Often treated but may still contain chlorine
- Private sources - May contain sediment or other contaminants
Knowing your water source helps you choose the right water treatment solution.
Different water sources have different needs. A system that works for one home may not work for another.

Types of Water Filtration Systems
There are different types of filtration systems available for homes.
Common options include:
- Whole house systems - Treat all water entering your home
- Point of use filter - Treat water at a single tap
- Sediment filter - Removes dirt and particles from the water
- Advanced systems - Can reduce volatile organic compounds VOCs and other contaminants
Whole-house systems are useful if you want filtered water throughout your home. A point-of-use filter is better for specific water needs, like drinking water.

What Contaminants Should Be Removed?
Different systems remove different contaminants.
Some systems are designed to:
- Remove chlorine and heavy metals
- Reduce sediment and dirt
- Filter out contaminants, including VOCs
- Improve taste and smell
It is important to choose a system that removes contaminants found in your water supply.
A plumber can help test your water and recommend a system that effectively removes unwanted materials.
Choosing the Right Flow Rate
Flow rate is an important factor when choosing a water filtration system. It refers to how much water can pass through the system at one time.
If the flow rate is too low, water pressure may drop. This can affect showers, taps, and appliances. A system should match your household size and water use. This ensures your house systems continue to work properly.
Whole House vs Point of Use Filter
Many homeowners choose between whole-house systems and point-of-use filter options.
- Whole-house systems filter water at the main water line. This means all water in your home is treated.
- Point-of-use filter systems treat water at a single location, such as a kitchen tap.
If your goal is to improve all the water in your home, whole-house systems may be the better option. If you only need better drinking water, a point-of-use filter may be enough.
Why Professional Installation Helps
Installing a water filtration system requires proper connection to your water line and compatibility with your existing plumbing. A qualified plumber ensures everything is set up correctly for optimal performance.
Expert installation reduces the risk of leaks, improves efficiency, and ensures the system suits your household’s water pressure and usage needs.
Maintenance and Long-Term Use
Water filtration systems require routine upkeep to stay effective. Filters need to be replaced periodically to maintain their ability to remove contaminants.
Regular servicing helps keep your water clean and your system running at its best. Ongoing support from a residential plumbing professional can extend the life of your setup and prevent issues before they arise.
When to Find a Plumber
If you’re unsure which system is right for your home, you can find a plumber who can help assess your water supply, test for contaminants, and recommend the most suitable option.
They can also handle installation and provide continued support, ensuring everything functions as it should.
Final Thoughts
Choosing the right water filtration system plays a key role in improving water quality at home. Clean water supports your health and enhances everyday living.
By understanding your water source and selecting the right solution, whether a whole-house system or a point-of-use filter, you can achieve safe, reliable water. Professional guidance ensures your system is installed correctly and performs as expected.
Upgrade to Cleaner, Safer Water Today
Don’t settle for questionable water. Get a reliable filtration system that protects your home and your health every day. Water Works delivers expert installation and maintenance you can trust across Auckland.
Call 0800 448 372 or book online now and save $15. Fast response. Skilled plumbers. Clean water, done right.
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