UK Water Quality Report • 2026 Data

Water Hardness in SA37

Water supply analysis across 1 postcode sectors in SA37 (Hafren Dyfrdwy).

Outcode Avg Hardness140 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode SA37

Looking for water hardness metrics in SA37? Water supplied by Hafren Dyfrdwy in this outcode registers a baseline average of 140 PPM across 1 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in SA37. The lowest mineral concentration is recorded in sector SA37 0 at 140 PPM, whereas sector SA37 0 experiences higher mineral levels reaching 140 PPM.

Due to the moderately hard water (140 PPM) in SA37, 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 H01) 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 SA37

Lowest mineral concentration

Softest
Sector SA37 059 Postcodes • Moderately Hard
140 PPM9.8 °Clark

Hardest Sector in SA37

Highest mineral concentration

Highest Hardness
Sector SA37 059 Postcodes • Moderately Hard
140 PPM9.8 °Clark

All Postcode Sectors in SA37

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