When people start looking into water filtration, they often land on two quite different products without realising it: a whole house filtration system, and a single-tap or under-sink filter. They solve overlapping problems, but in genuinely different ways — and the right choice depends on what you’re actually trying to achieve.
How Single-Tap Filters Work
A single-tap filter — sometimes called an under-sink filter — installs at one specific point, usually the kitchen sink, and only treats the water that comes out of that tap. They’re relatively inexpensive to buy and install, and they do a reasonable job of improving the taste of drinking and cooking water.
The catch is exactly what it sounds like: only that one tap benefits. Every other tap, shower, and appliance in the house continues to receive unfiltered water.
How Whole House Systems Work
A whole house water filtration system installs at the point where the main water line enters your home, meaning every tap, shower, and appliance downstream receives filtered water. There’s no single point of use — it’s the entire household’s water supply being treated at once.
This broader coverage is the main reason whole house systems tend to deliver more noticeable, more comprehensive benefits — cleaner-tasting water everywhere, less chlorine exposure in the shower, and protection for appliances like your hot water system, dishwasher, and washing machine from scale build-up.
Comparing the Practical Differences
Single-tap filters generally need more frequent cartridge changes since the filtration media is smaller and handles less volume relative to typical household usage. Whole house systems use larger filter housings designed to treat significantly higher water volumes, often with longer intervals between cartridge changes despite covering far more water use.
On installation, single-tap filters are something many people can fit themselves with basic tools. Whole house systems generally need professional installation since they’re plumbed into the main line and need to be set up correctly to avoid pressure issues or leaks.
Which One Should You Choose?
If your only concern is the taste of your drinking water and you’re not worried about hard water affecting your appliances, skin, or hair, a single-tap filter might be enough to start with. But for most Perth households dealing with hard, chlorinated water across the whole house — not just the kitchen tap — a whole house system addresses the issue much more completely.
Some households use both: a whole house system for general treatment throughout the home, plus an additional point-of-use filter at the kitchen sink for an extra layer of filtration on drinking water specifically. It’s not necessary for everyone, but it’s an option worth knowing about.
Not Sure Which Is Right for Your Home?
Filter Solutions WA can talk you through the difference in more detail and recommend the right setup based on your specific water quality concerns and household needs. Get in touch with us today for an honest assessment.
