AquaScaleEurope

Bologna vs Rijeka

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

Harder

Bologna

italy

256mg/L

Very Hard Water

17.92°e
Very Hard
Base Unit (CaCO3): 256 mg/LLocal Unit
Full Bologna data →

Rijeka

croatia

172mg/L

Hard Water

12.04°e
Hard
Base Unit (CaCO3): 172 mg/LLocal Unit
Full Rijeka data →

Side-by-Side Impact

Impact AreaBolognaRijeka
Limescale buildupRapid — visible within weeksModerate — monthly descaling
Boiler/heating riskAnnual descaling requiredMonitor annually
Dishwasher salt settingMax salt setting (5–7)High salt setting (3–5)
Skin & hair impactHigh eczema/dry skin riskModerate risk
Detergent usage+30–40% more detergent+15–25% more

Key Findings

Hardness Difference: 84 mg/L

Bologna is meaningfully harder than Rijeka. Residents moving between these cities should adjust dishwasher salt settings, descaling frequency, and boiler service schedules.

Moving from Rijeka to Bologna?

If you're relocating from Rijeka to Bologna, 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