Cartridge-Less Whole House System
Financial Planing
Cartridge-less whole house system installed in Perth. BASELINE ZERO is WaterMark certified, independently tested and self-cleaning.
Authorised BASELINE installer

Water filtration shouldn’t be something you have to keep worrying about

Filter changes measured in years, not months, and installed in hours.

BASELINE ZERO wordmark
BASELINE ZERO cartridge-less whole house filter system
WaterMark certification mark
AS 3497:2021
NSF/ANSI 42 lab tested
Independent results
Licensed trades
Plumber and electrician
5 star Google reviews
Local Perth clients

The numbers behind BASELINE ZERO

5 year running cost

More affordable filtered water over time

Cartridges

~$2,500

BASELINE ZERO recharge

$849

One recharge in 5 years

Assumes yearly cartridge changes. Media lasts 3 – 5 years depending on water and use. Excludes purchase and install.
Filter media inside

We do this by having more media

Cartridge

1x

BASELINE ZERO

18x

18 times the media doing the work

Compared with a 10 x 4.5 inch cartridge (about 1 kg).
Lab tested flow rate

Reducing chemicals is harder when water moves fast. Ours was tested at full flow.

Cartridge

10 to 23 L/min

BASELINE ZERO

41.7 L/min

About 2 to 4x the lab tested flow of a cartridge

Lab tested at 41.7 L/min. Cartridge ratings vary by product.

99.5%

Chlorine reduction at the full 41.7 L/min. Tested at double the chlorine of Perth water, then over about 5 months of household use, and still reducing chlorine by over 95%. See the full lab results.

BASELINE ZERO Cartridge-Less Whole House Water Filter Perth

After 13 years in the plumbing industry, we only install systems we’d happily put in our own homes. We wanted a whole house filter that holds far more media than a cartridge, keeps its flow, and doesn’t rely on anyone remembering frequent filter changes. BASELINE ZERO does all three.

It’s one large media tank of premium carbon and KDF 55 that treats every tap, shower and appliance in your home. It reduces chlorine and chemicals while keeping the natural minerals in your water, so there’s nothing to add back in later. A smart controller backwashes the tank every week while you sleep, flushing trapped sediment to the drain so your pressure stays steady. No cartridges to swap, no reminders, and no plastic going to landfill.

Got hard water too? Pair it with a water softener.

BASELINE ZERO whole house water filter beside a standard 10 inch cartridge, showing 18 times the filtration media

Core system highlights

Automatic smart controller

Flushes sediment automatically to keep pressure steady.

Quick connect bypass valve

Switch between filtered and unfiltered water in seconds.

Large volume media tank

More media, more time filtering, longer between recharges.

Premium carbon & KDF media

Reduces chlorine, heavy metals and VOCs while keeping good minerals.

Insulated weatherproof covers

Protects the system from sun, rain and heat.

Why we install BASELINE ZERO

We’ve installed plenty of systems over the years. BASELINE ZERO is the one we recommend first, and the numbers back it up.

WaterMark certified

Certified to AS 3497:2021 (WM-032536), the Australian standard for water treatment appliances, and approved for installation in Australian homes.

Independently lab tested

Tested at double the chlorine of Perth water. After about 5 months of household use, it was still reducing chlorine by over 95%. It also passed all seven AS/NZS 4020 tests for safe contact with drinking water. See the full lab results.

18x the media

18.5 kg of premium carbon and KDF 55, compared with about 1 kg in a standard 10 inch cartridge. More media means your water spends more time filtering, and the media lasts longer between replacements.

Full flow

Lab tested at 41.7 L/min, about 2 to 4 times the lab tested flow of a typical cartridge, so showers and appliances keep their pressure.
Simple Steps

An easy journey...

TESTED & TAILORED

We test your water on site, including chlorine and hardness, and confirm the right setup for your home.

EXPERTS INSTALL

A licensed plumber and licensed electrician install and commission your system.

SET & FORGET

It cleans itself every week. There is nothing to remember and no cartridges to swap.

What’s Included

BASELINE ZERO whole house system
Premium insulated weatherproof covers
Up to 18x the media of a standard cartridge
Licensed plumber water and drain connection
Licensed electrician double power point installation
Full commissioning and performance check on completion
Local support with a 48 hour guarantee on any issue
BASELINE warranty included, see baselinewater.com.au/warranty

BASELINE ZERO installed from $3,899

Testimonials

See What Our Clients Are Saying

Pair it with

Water softener

Hard water leaves scale on tapware and appliances. A softener is the only true long-term solution to remove calcium and magnesium.
View softeners →

Backwash pre-filter

Rust or discoloured water after main upgrades? A backwash filter catches it before it reaches your main system.
View backwash filters →

Reverse osmosis

Refined drinking water at the kitchen tap, with BASELINE ZERO looking after the rest of the house.
View reverse osmosis →

FAQ

BASELINE ZERO is our first recommendation for chlorine, taste and odour, and man-made industrial compounds such as pesticides. Because it holds significantly more filtration media, it gives your water much more time filtering through the carbon than with a standard cartridge.

A water softener is the only true long-term solution to remove calcium and magnesium. It works on the same principals as BASELINE ZERO, larger amount of media and backwashing to prolong the lifespan of the system.

Most homes in Perth don’t need a water softener. As a general rule we recommend a water softener when the hardness (made up of calcium and magnesium) in your water exceeds a reading of 100ppm. This is typical of suburbs from Joondalup onward, most homes south of Joondalup do not. Unnecessarily removing calcium and magnesium can negatively affect your drinking water. This is another reason why we don’t suggest water conditioners as they cannot regulate how much hardness they’re removing.

BASELINE ZERO is installed from $3,899, including licensed plumbing, electrical and drain connection. We confirm your final price after a water test and site check, because it depends on where the system goes and how your water main is run. A water softener or pre-filter is quoted as an add-on.

Media typically lasts 3 to 5 years. It varies, as every home has different water quality, usage habits and other variables. Higher usage or heavier chlorine levels mean the media works harder, while lighter use extends it. When it is due, a genuine BASELINE ZERO Recharge is $849.

Yes. We offer media replacement as a premium service for customers who want complete peace of mind. Rather than leaving you to track timelines yourself, we monitor replacement intervals and service your system at the right time so it keeps performing as intended.

Yes. It comes with insulated weatherproof covers, which are fitted on every outdoor install.

Expect about 100 kPa of pressure drop at installation. The weekly backwash stops the gradual pressure loss you get as cartridges clog. 

Yes. It is certified to AS 3497:2021, licence WM-032536, issued by IAPMO Oceania.

BASELINE ZERO is designed mainly for mains water. Bore, tank and other sources need a water test first, as high iron can affect performance and the warranty, and extra pre-filtration may be needed.

We cover up to 35 km from the Perth CBD. Outside that, an in-home consultation is $99 including a water test, refunded off your install if you go ahead.

It isn’t a factor of cutting costs, 1 micron filters cost the same as others. We don’t install ultra-fine whole-home filters because they create more problems than benefits. When filtration is too tight, water pressure drops, filters clog quickly, and systems need constant replacements, which drives up cost and maintenance. Good water filtration is about balance, improving water quality while keeping strong flow and reliable performance throughout the home. Ultra-fine filtration is best used at a point of use, like a drinking tap, where water has already been filtered and only a small amount needs extra polishing.

Our test kits are designed to test beyond ‘TDS’. TDS stands for total dissolved solids, this doesn’t tell the full story of what needs treating with your water. TDS can include things like good minerals and doesn’t give an indication on what needs treating. Our equipment will determine chlorine levels and how much of the total is contributed to by things like hardness that cause scale.

Product: BASELINE ZERO whole house water filter
Installed by: Water Filtration Perth
Primary benefit: Reduces chlorine and chemicals at every tap
Maintenance: Self-cleaning every week, no cartridge changes
Certification: WaterMark, AS 3497:2021 (WM-032536)
Flow rate: 41.7 L/min, lab tested
Media: 18.5 kg premium carbon and KDF 55
Dimensions: 1580 mm H x 260 mm W x 303 mm D
Connections: 1″ BSP quick connect with integrated bypass
Price: Installed from $3,899

Learn more about your water

Is the chlorine in Australian tap water safe?

Read on BASELINE →

Do you need a whole house water filter in Australia?

Read on BASELINE →

What happens if you don’t change your water filter?

Read on BASELINE →

Do I need a water filter or a water softener?

Read on BASELINE →
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