UK Water Quality Report • 2026 Data

Water Hardness in EX33

Water supply analysis across 2 postcode sectors in EX33 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode EX33

For residents and businesses in outcode EX33, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that EX33 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in EX33. The lowest mineral concentration is recorded in sector EX33 1 at 40 PPM, whereas sector EX33 2 experiences higher mineral levels reaching 40 PPM.

Since EX33 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 EX33

Lowest mineral concentration

Softest
Sector EX33 1200 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in EX33

Highest mineral concentration

Highest Hardness
Sector EX33 2171 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in EX33

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