UK Water Quality Report • 2026 Data

Water Hardness in NG33

Water supply analysis across 2 postcode sectors in NG33 (Anglian Water).

Outcode Avg Hardness310 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode NG33

Looking for water hardness metrics in NG33? Water supplied by Anglian Water in this outcode registers a baseline average of 310 PPM across 2 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in NG33. The lowest mineral concentration is recorded in sector NG33 4 at 310 PPM, whereas sector NG33 5 experiences higher mineral levels reaching 310 PPM.

Due to the very hard water (310 PPM) in NG33, 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 H07 (Max Salt)) 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 NG33

Lowest mineral concentration

Softest
Sector NG33 4236 Postcodes • Very Hard
310 PPM21.7 °Clark

Hardest Sector in NG33

Highest mineral concentration

Highest Hardness
Sector NG33 5237 Postcodes • Very Hard
310 PPM21.7 °Clark

All Postcode Sectors in NG33

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