Water hardness in Dalby
162 mg/L hard
Tap water in Dalby is hard: 162 mg/L (9.5 gpg · 9.1 °dH · 16.2 °fH).
Source: Western Downs Regional Council, Drinking Water Quality Management Plan Annual Report 2022/23 (July 2022 - June 2023) (2023) · data checked 2026-11-05
Range across supply zones: 83–240 mg/L.
Dalby's supply in the Western Downs comes from the Dalby water treatment plant, which draws on Loudoun Weir and alluvial bores. Average total hardness was 162.4 mg/L CaCO₃, with samples from 83 to 240 mg/L, in the Western Downs DWQMP Annual Report for July 2022 to June 2023. That is in the hard range, so expect visible scale on kettles and taps; the figure comes from that one report and may have changed since.
Australian Drinking Water Guidelines: aesthetic target ≤ 200 mg/L CaCO₃.
Water data
| Total hardness | 162 mg/L |
|---|---|
| Utility | Western Downs Regional Council |
How Dalby compares
- Tap water in Dalby is 91 % harder than the median of the 307 cities we track in Australia (85 mg/L).
- By hardness it ranks 39 of 307 in Australia (1 = hardest); 88 % of these cities have softer water.
- In Queensland it is number 2 of 29 cities; the regional median is 68 mg/L.
Ranking of the hardest and softest water in Australia →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Dalby
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| LG | H2 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Dalby water hard or soft?
It is hard: 162 mg/L as CaCO₃ (9.5 gpg, 9.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Dalby safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Australian Drinking Water Guidelines: aesthetic target ≤ 200 mg/L CaCO₃.
How many grains per gallon is Dalby water?
9.5 gpg, equal to 9.1 °dH, 16.2 °fH or 162 mg/L calcium carbonate.
What dishwasher salt setting should I use in Dalby?
For 162 mg/L (9.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Dalby?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Western Downs Regional Council, Drinking Water Quality Management Plan Annual Report 2022/23 (July 2022 - June 2023) (2023). Method: figure published by the water supplier. Western Downs Regional Council, Drinking Water Quality Management Plan Annual Report 2022/23 (July 2022 - June 2023) · Outdated figure? Tell us