UK Water Quality Report • 2026 Data

Water Hardness in TA9

Water supply analysis across 2 postcode sectors in TA9 (Wessex Water).

Outcode Avg Hardness277.5 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode TA9

Looking for water hardness metrics in TA9? Water supplied by Wessex Water in this outcode registers a baseline average of 277.5 PPM across 2 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in TA9. The lowest mineral concentration is recorded in sector TA9 4 at 265 PPM, whereas sector TA9 3 experiences higher mineral levels reaching 290 PPM.

Due to the hard water (277.5 PPM) in TA9, 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 TA9

Lowest mineral concentration

Softest
Sector TA9 4198 Postcodes • Hard
265 PPM18.6 °Clark

Hardest Sector in TA9

Highest mineral concentration

Highest Hardness
Sector TA9 3270 Postcodes • Hard
290 PPM20.3 °Clark

All Postcode Sectors in TA9

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