Executive Summary: Sector BH2 5 vs Sector SW1A 1
Comparing tap water mineral concentration between Sector BH2 5 (Bournemouth Water) and Sector SW1A 1 (Thames Water) reveals a water hardness difference of 7 PPM. Sector BH2 5 has softer water at 268 PPM (Hard) compared to Sector SW1A 1 at 275 PPM (Hard).
Limescale risk and boiler heating efficiency vary based on these mineral levels. Households in Sector SW1A 1 experience higher heating element degradation and kettle scale accumulation due to elevated calcium carbonate density (275 PPM vs 268 PPM).
For home appliance setup, Bosch dishwasher water softener settings should be calibrated accordingly: Sector BH2 5 requires setting H05 whereas Sector SW1A 1 recommends setting H04.