Your water starts long before it reaches your tap.

Rainfall, rivers, dams, groundwater, desalination, treatment plants, storage and distribution networks all shape the water supplied to Australian homes. Start with your city to understand the broad journey—then add your property and household goals to decide what comes next.

Same country. Very different water journeys.

Australian drinking water is managed within national health-based frameworks, but cities can draw from very different sources and use different treatment and distribution systems. That difference is context—not a simple ranking of good or bad water. It helps explain the right questions to ask about taste, hardness, disinfectant residuals, scale, sediment and household treatment.

Get a local recommendation

Choose your city

Use local utility information to understand the broad setting. Then add source, property age, pipework, pressure, household size, installation space and the concern that brought you here.

Sydney

Sydney water is supplied through catchments and dams, with desalination available when required, before treatment and distribution through the network.

Sydney guide

Melbourne

Melbourne draws largely from protected catchments, supported by reservoirs and desalination capacity.

Melbourne guide

Brisbane

Brisbane is part of the South East Queensland water grid, with dams, treatment plants and pipelines including major supply from Mt Crosby.

Brisbane guide

Perth

Perth uses a diverse mix that can include groundwater, desalinated water, surface storage and groundwater replenishment.

Perth guide

Capital cities are the first layer

Hobart uses multiple sources and treatment systems, so questions about source, treatment, disinfection, taste, property plumbing and household filtration need local context. The capital guides are only a starting point: future coverage can extend to Alice Springs, Katherine, regional and remote Northern Territory communities, Launceston, north-west Tasmania and regional southern Tasmania. Operational source mixes can change, so individual guides should always be checked against current utility information.

Every city guide answers the same core questions

Each guide follows the same six-part structure so you can compare places without confusing city context with a product prescription.

Source and treatment

1. Main source. 2. Treatment process. 3. Disinfectant residual. 4. Typical local water characteristics. 5. Common household questions. 6. Relevant treatment pathways. The guide provides context; it does not select a product for one home.

What city data cannot know

City-level information cannot diagnose one home's plumbing, storage, fixtures or tap water condition.

What to do next

Explore contaminants, compare filtration methods, or ask WAA about your home.

More capital city guides

Continue with Adelaide, Canberra and Darwin. Each summary separates current city-level context from the property-specific details needed before any treatment decision.

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Adelaide

Adelaide can draw from reservoirs, the River Murray and desalination, with the contribution of each source changing over time. Explore taste, hardness, scale, disinfection, drinking-water treatment and source variation.

Adelaide guide
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Canberra

Canberra water is supplied from catchments and reservoirs before treatment and distribution. Explore sources, treatment, public monitoring, careful interpretation of PFAS information and when household treatment may add value.

Ask about Canberra water
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Darwin

Darwin’s supply can include Darwin River Dam and borefield sources, with Manton Dam part of the broader system. Tropical and seasonal conditions make source, minerals, disinfection and sediment useful questions to explore.

Get recommendation

Before a city guide becomes a recommendation, add the home.

Bring the postcode, water source if known, property age, pipe material, pressure concerns, household size and the change you actually want. City-level information supplies context; these details reveal whether the next step is education, testing, installation advice or a system conversation.

Start with the supply

Use local utility information to understand the source, treatment approach and published city-level context.

Add the property

Building age, internal plumbing, tanks, strata systems and stagnation can change what reaches the tap.

Name the household goal

Separate taste, sediment, scale, convenience and a specific verified substance before discussing treatment.

Choose the next check

Move to testing, filtration comparison or a recommendation when city-level information is not enough.