UK Water Quality Report • 2026 Data

Water Hardness in KT19

Water supply analysis across 4 postcode sectors in KT19 (SES Water).

Outcode Avg Hardness267.5 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode KT19

For residents and businesses in outcode KT19, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that KT19 averages 267.5 PPM in mineral content, falling into the Hard Water classification.

Water chemistry can fluctuate across supply zones in KT19. The lowest mineral concentration is recorded in sector KT19 0 at 260 PPM, whereas sector KT19 8 experiences higher mineral levels reaching 275 PPM.

Due to the hard water (267.5 PPM) in KT19, 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 KT19

Lowest mineral concentration

Softest
Sector KT19 0180 Postcodes • Hard
260 PPM18.2 °Clark

Hardest Sector in KT19

Highest mineral concentration

Highest Hardness
Sector KT19 8227 Postcodes • Hard
275 PPM19.3 °Clark

All Postcode Sectors in KT19

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