UK Water Quality Report • 2026 Data

Water Hardness in TQ4

Water supply analysis across 4 postcode sectors in TQ4 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode TQ4

For residents and businesses in outcode TQ4, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that TQ4 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in TQ4. The lowest mineral concentration is recorded in sector TQ4 5 at 40 PPM, whereas sector TQ4 9 experiences higher mineral levels reaching 40 PPM.

Since TQ4 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 TQ4

Lowest mineral concentration

Softest
Sector TQ4 5149 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in TQ4

Highest mineral concentration

Highest Hardness
Sector TQ4 910 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in TQ4

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