UK Water Quality Report • 2026 Data

Water Hardness in EX37

Water supply analysis across 1 postcode sectors in EX37 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode EX37

Looking for water hardness metrics in EX37? Water supplied by South West Water in this outcode registers a baseline average of 40 PPM across 1 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in EX37. The lowest mineral concentration is recorded in sector EX37 9 at 40 PPM, whereas sector EX37 9 experiences higher mineral levels reaching 40 PPM.

Since EX37 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 EX37

Lowest mineral concentration

Softest
Sector EX37 9202 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in EX37

Highest mineral concentration

Highest Hardness
Sector EX37 9202 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in EX37

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