AquaScaleEurope

Ostrava vs New York

Water hardness comparison — how the two cities differ and what it means for your home.

Harder

Ostrava

czech republic

188mg/L

Hard Water

13.16°e
Very Hard
Base Unit (CaCO3): 188 mg/LLocal Unit
Full Ostrava data →

New York

united states

52mg/L

Soft Water

3.64°e
Soft
Base Unit (CaCO3): 52 mg/LLocal Unit
Full New York data →

Side-by-Side Impact

Impact AreaOstravaNew York
Limescale buildupModerate — monthly descalingMinimal
Boiler/heating riskMonitor annuallyLow risk
Dishwasher salt settingHigh salt setting (3–5)Low setting (1–2)
Skin & hair impactModerate riskLow risk
Detergent usage+15–25% moreStandard dose

Key Findings

Hardness Difference: 136 mg/L

Ostrava 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 Ostrava?

If you're relocating from New York to Ostrava, 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