UK Water Quality Report • 2026 Data

Water Hardness in TR1

Water supply analysis across 4 postcode sectors in TR1 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode TR1

Looking for water hardness metrics in TR1? Water supplied by South West Water in this outcode registers a baseline average of 40 PPM across 4 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in TR1. The lowest mineral concentration is recorded in sector TR1 1 at 40 PPM, whereas sector TR1 9 experiences higher mineral levels reaching 40 PPM.

Since TR1 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 TR1

Lowest mineral concentration

Softest
Sector TR1 1286 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in TR1

Highest mineral concentration

Highest Hardness
Sector TR1 9126 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in TR1

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