UK Water Quality Report • 2026 Data

Water Hardness in BN26

Water supply analysis across 3 postcode sectors in BN26 (South East Water).

Outcode Avg Hardness270 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode BN26

Looking for water hardness metrics in BN26? Water supplied by South East Water in this outcode registers a baseline average of 270 PPM across 3 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in BN26. The lowest mineral concentration is recorded in sector BN26 5 at 270 PPM, whereas sector BN26 9 experiences higher mineral levels reaching 270 PPM.

Due to the hard water (270 PPM) in BN26, 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 BN26

Lowest mineral concentration

Softest
Sector BN26 5238 Postcodes • Hard
270 PPM18.9 °Clark

Hardest Sector in BN26

Highest mineral concentration

Highest Hardness
Sector BN26 95 Postcodes • Hard
270 PPM18.9 °Clark

All Postcode Sectors in BN26

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