UK Water Quality Report • 2026 Data

Water Hardness in TQ11

Water supply analysis across 1 postcode sectors in TQ11 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode TQ11

Looking for water hardness metrics in TQ11? 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 TQ11. The lowest mineral concentration is recorded in sector TQ11 0 at 40 PPM, whereas sector TQ11 0 experiences higher mineral levels reaching 40 PPM.

Since TQ11 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 TQ11

Lowest mineral concentration

Softest
Sector TQ11 0157 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in TQ11

Highest mineral concentration

Highest Hardness
Sector TQ11 0157 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in TQ11

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