UK Water Quality Report • 2026 Data

Water Hardness in EX3

Water supply analysis across 2 postcode sectors in EX3 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode EX3

For residents and businesses in outcode EX3, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that EX3 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in EX3. The lowest mineral concentration is recorded in sector EX3 0 at 40 PPM, whereas sector EX3 9 experiences higher mineral levels reaching 40 PPM.

Since EX3 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 EX3

Lowest mineral concentration

Softest
Sector EX3 0215 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in EX3

Highest mineral concentration

Highest Hardness
Sector EX3 910 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in EX3

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