Dortmund vs New York
Water hardness comparison — how the two cities differ and what it means for your home.
HarderFull Dortmund data →
Dortmund
germany
159mg/L
Hard Water
11.13°e
Hard
Base Unit (CaCO3): 159 mg/LLocal Unit
New York
united states
52mg/L
Soft Water
3.64°e
Soft
Base Unit (CaCO3): 52 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Dortmund | New York |
|---|---|---|
| Limescale buildup | Moderate — monthly descaling | Minimal |
| Boiler/heating risk | Monitor annually | Low risk |
| Dishwasher salt setting | High salt setting (3–5) | Low setting (1–2) |
| Skin & hair impact | Moderate risk | Low risk |
| Detergent usage | +15–25% more | Standard dose |
Key Findings
Hardness Difference: 107 mg/L
Dortmund is significantly harder than New York — a difference that has major household implications. Appliances, boiler warranties, and detergent costs will differ substantially.
Moving from New York to Dortmund?
If you're relocating from New York to Dortmund, expect visible limescale on taps and shower heads within weeks. You'll need to recalibrate your dishwasher's salt setting, increase kettle descaling frequency, and check your boiler warranty requirements. A shower filter and under-sink scale inhibitor are worth considering immediately.
Compare With Other Cities
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