Choosing a water filtration system for your home shouldn’t feel confusing or overwhelming. With so many products claiming to remove “everything” from your water, it’s important to understand what actually matters — and which questions help you make a confident, informed decision.
This practical guide explains how Australians can choose the right water filtration system based on their water source, household needs and long-term costs.
Table of Contents
1. Start With Your Water Source
The most important first step when choosing a water filter in Australia is identifying your water source.
Are you on:
• Town water
• Rainwater tank water
• Bore water
Each source can contain different contaminants and therefore requires different filtration approaches.
Town Water May Contain
• Chlorine
• Chloramine
• Disinfection by-products
Bore Water May Contain
• Iron
• Hardness minerals
• Sediment
Because water chemistry varies across Australia, there is no true “one-size-fits-all” water filter.
A system that works well for town water may not be appropriate for bore or tank water.
2. Identify What You Actually Want to Improve
Before selecting a filtration system, it helps to clearly define your primary goals. Common reasons Australians install water filters include:
• Improving taste and smell
• Removing chlorine from tap water
• Reducing PFAS and other emerging contaminants
• Protecting appliances from sediment and mineral build-up
• Removing sediment
• Reducing heavy metals
A good water filtration system should be designed to target specific water quality concerns, rather than making unrealistic “removes everything” claims.
3. Understand Removal vs Reduction
One of the most misunderstood topics in water filtration is the difference between removal and reduction. No water filter removes 100% of every contaminant.
Instead, reputable filtration systems typically reduce contaminants to safer or more acceptable levels.
When researching systems, look for:
• Clear statements about which contaminants are reduced
• Realistic performance expectations
• Transparent maintenance and replacement requirements
This transparency helps homeowners make better long-term decisions.
4. Certification and Compliance
When choosing a water filtration system in Australia, it’s important to understand the difference between plumbing compliance and performance testing.
WaterMark Certification
WaterMark certification confirms that a product meets Australian plumbing and installation standards.
NSF Certification or Testing
NSF certification, or testing to NSF standards, typically relates to contaminant reduction performance.
Both are valuable — but they measure different aspects of a filtration system.
Understanding this distinction helps prevent confusion when comparing products.
5. Micron Ratings Matter (But Context Matters More)
Micron ratings describe the size of particles a filter can capture.
Generally:
• Lower micron filters capture smaller particles
• However, very fine filters may reduce water flow
For whole-house filtration systems, the key is balancing:
• Filtration performance
• Household water pressure
• Flow requirements
The ideal micron rating depends on your specific water conditions.
6. Standard vs Proprietary Filters
Before purchasing a system, it’s worth asking several practical questions:
• Are replacement cartridges easy to source?
• Are you locked into one supplier?
• What is the annual replacement cost?
In many cases, the long-term cost of filter replacements matters more than the initial purchase price. Understanding this upfront helps avoid expensive surprises later.
7. Installation Environment
The environment where your system is installed can significantly impact its durability and lifespan.
Outdoor filtration systems in Australia may be exposed to:
• UV radiation
• Heat
• Corrosion
For this reason, material quality and housing design are important considerations.
8. Maintenance Expectations
Every water filtration system requires ongoing maintenance. Before choosing a system, understand:
• How often filters need to be replaced
• The approximate annual maintenance cost
• Whether cartridge changes can be done yourself
Clear maintenance expectations make long-term ownership easier.
9. Whole House vs Drinking Water Filtration
Not every household requires full whole-house filtration. In some cases, a smaller targeted solution may be sufficient.
Examples include:
• Undersink drinking water filters
• Shower filters for chlorine reduction
Choosing the right system size for your needs can help reduce upfront and ongoing costs.
10. Work With a Supplier Who Educates — Not Pressures
A trustworthy water filtration supplier should focus on education rather than pressure sales tactics.
Look for companies that:
• Explain limitations honestly
• Provide documentation where available
• Help you select a system based on your water quality and needs, not simply the highest-priced option
Transparency and expertise are strong indicators of a reputable supplier.
Final Thought: The Best Water Filter Is the Right One for Your Home
The best water filter is not necessarily the most expensive one. The right system is one that:
• Matches your local water quality
• Meets your household requirements
• Has transparent replacement costs
• Is supported by a supplier who will still answer the phone five years from now
At My Water Filter, we believe informed customers make better decisions — and that long-term trust matters more than short-term sales.
Learn More
Visit: https://mywaterfilter.com.au
Or call 1800 769 300 to speak with our team.
Clean water. Clear thinking. Peace of mind.
Regards,
The Team from My Water Filter
CREATE THE BEST WATER YOU CAN
Identify Your Source and Goals First: The most crucial step in choosing a water filter in Australia is knowing whether you rely on town, bore or rainwater, as each contains distinct contaminants. Following this, you must clearly define your goals, such as improving taste or protecting appliances from sediment.
Recognise 'Reduction' Over 'Removal': No system completely eliminates 100% of contaminants. Reputable filters reduce specific impurities to safe levels. It is also important to differentiate between WaterMark certification (which ensures Australian plumbing compliance) and NSF certification (which measures filtration performance).
Prioritise Long-Term Costs and Maintenance: The ongoing expense and availability of replacement cartridges often matter more than the initial purchase price. To avoid expensive surprises, opt for standard filters over proprietary ones and factor in your installation environment and household water pressure.
Hear from Our Satisfied Customers
What Is the Difference Between WaterMark and NSF Certification?
WaterMark certification guarantees that a product meets Australian plumbing and installation standards, ensuring it is safe to connect to your home's water supply. NSF certification (or testing to NSF standards) specifically measures how effectively the filter reduces contaminants.
Will a Water Filter Remove Every Contaminant from My Tap Water?
No water filtration system removes 100% of all contaminants. Instead of making unrealistic claims of complete removal, trustworthy filtration systems are designed to significantly reduce targeted contaminants to safer and more acceptable levels.
Should I Choose a Whole House System or Just a Drinking Water Filter?
This depends entirely on your household needs. If your primary goal is to improve the taste and quality of your drinking water, a targeted undersink filter is highly effective and more affordable. However, if you need to protect appliances from mineral build-up or reduce chlorine in your shower, a whole-house system is the better investment.
