UK Water Quality Report • 2026 Data

Water Hardness in BH12

Water supply analysis across 6 postcode sectors in BH12 (South West Water).

Outcode Avg Hardness165 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode BH12

Analyzing water quality disclosures across all 6 postcode sectors in outcode BH12 reveals an average water hardness of 165 PPM (Moderately Hard Water). Public water supply across this area is managed by South West Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in BH12. The lowest mineral concentration is recorded in sector BH12 1 at 40 PPM, whereas sector BH12 4 experiences higher mineral levels reaching 290 PPM.

Due to the moderately hard water (165 PPM) in BH12, limescale build-up can occur on heating elements, shower heads, and boilers. Setting your dishwasher water softener to the correct level (e.g. Bosch setting H04) is strongly recommended to prevent cloudy glassware and internal scale accumulation. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in BH12

Lowest mineral concentration

Softest
Sector BH12 1147 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in BH12

Highest mineral concentration

Highest Hardness
Sector BH12 4183 Postcodes • Hard
290 PPM20.3 °Clark

All Postcode Sectors in BH12

Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.