UK Water Quality Report • 2026 Data

Water Hardness in EX9

Water supply analysis across 3 postcode sectors in EX9 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode EX9

For residents and businesses in outcode EX9, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that EX9 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in EX9. The lowest mineral concentration is recorded in sector EX9 6 at 40 PPM, whereas sector EX9 9 experiences higher mineral levels reaching 40 PPM.

Since EX9 enjoys soft water (40 PPM), residents generally do not need dishwasher salt or heavy-duty limescale descalers. Standard detergent dosages are sufficient for laundry and dishwashing. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in EX9

Lowest mineral concentration

Softest
Sector EX9 6209 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in EX9

Highest mineral concentration

Highest Hardness
Sector EX9 92 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in EX9

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