Dunedin water guide

Is Dunedin tap water chlorinated?

A practical guide to Dunedin’s chlorinated network, multiple source waters, variable pressure and local hardness differences.

Filtered handshower producing an even spray

Quick answer

Yes. Dunedin City Council has stated that its public drinking-water supply is chlorinated, with residual disinfectant used as water passes through the distribution network.

What is in Dunedin tap water?

Dunedin City Council manages several catchments, treatment stations and distribution areas. Its main sources include Deep Creek and Deep Stream, while other sources serve or supplement outlying areas.

Council information for the Maori Hill zone described water from the Mt Grand plant as soft to moderately hard, around 30 mg/L as calcium carbonate for the cited period. That figure is zone-specific, so do not apply it to every Dunedin address.

Check your own supply: Start with Dunedin City Council’s current water-supply page and ask for information for your distribution zone.

What this means in the shower

Dunedin’s hilly landscape means water pressure can vary considerably. Choose a shower product by both fitting and tested flow, and treat chlorine, pressure and hardness as three separate questions.

A shower filter treats water only at that shower outlet. It may reduce selected substances according to its media and test conditions, but it does not make hard water soft or replace official drinking-water advice.

Compare your city with the NZ water guide, or read how vitamin C reacts with free chlorine.

Common questions

Is Dunedin tap water chlorinated?

Yes. The council has stated that it supplies chlorinated drinking water and monitors free available chlorine in its networks.

Is Dunedin water hard?

It varies by source and zone. Published information for the Mt Grand supply described around 30 mg/L as soft to moderately hard for the cited period. A shower filter does not soften water.

Which shower filter should I choose?

Choose by shower fitting first. Universal keeps a compatible existing shower head; Nourish and Radiance replace a compatible handshower; Aura provides overhead coverage. Compare the full range before ordering.

Choose for your shower, not just your postcode.

Use the buying guide to compare fittings, published evidence, refill cycle and total running cost.

Read the buyer’s guideCompare SUHAE filters