UK Water Quality Report • 2026 Data

Water Hardness in RG27

Water supply analysis across 4 postcode sectors in RG27 (South East Water).

Outcode Avg Hardness271.3 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode RG27

Analyzing water quality disclosures across all 4 postcode sectors in outcode RG27 reveals an average water hardness of 271.3 PPM (Hard Water). Public water supply across this area is managed by South East Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in RG27. The lowest mineral concentration is recorded in sector RG27 0 at 270 PPM, whereas sector RG27 7 experiences higher mineral levels reaching 275 PPM.

Due to the hard water (271.3 PPM) in RG27, 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 RG27

Lowest mineral concentration

Softest
Sector RG27 0233 Postcodes • Hard
270 PPM18.9 °Clark

Hardest Sector in RG27

Highest mineral concentration

Highest Hardness
Sector RG27 717 Postcodes • Hard
275 PPM19.3 °Clark

All Postcode Sectors in RG27

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