UK Water Quality Report • 2026 Data

Water Hardness in SY10

Water supply analysis across 5 postcode sectors in SY10 (Hafren Dyfrdwy).

Outcode Avg Hardness156 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode SY10

Looking for water hardness metrics in SY10? Water supplied by Hafren Dyfrdwy in this outcode registers a baseline average of 156 PPM across 5 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in SY10. The lowest mineral concentration is recorded in sector SY10 0 at 140 PPM, whereas sector SY10 9 experiences higher mineral levels reaching 160 PPM.

Due to the moderately hard water (156 PPM) in SY10, 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 H02) 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 SY10

Lowest mineral concentration

Softest
Sector SY10 0147 Postcodes • Moderately Hard
140 PPM9.8 °Clark

Hardest Sector in SY10

Highest mineral concentration

Highest Hardness
Sector SY10 9221 Postcodes • Moderately Hard
160 PPM11.2 °Clark

All Postcode Sectors in SY10

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