UK Water Quality Report • 2026 Data

Water Hardness in BT11

Water supply analysis across 2 postcode sectors in BT11 (Northern Ireland Water).

Outcode Avg Hardness35 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode BT11

Looking for water hardness metrics in BT11? Water supplied by Northern Ireland Water in this outcode registers a baseline average of 35 PPM across 2 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in BT11. The lowest mineral concentration is recorded in sector BT11 8 at 35 PPM, whereas sector BT11 9 experiences higher mineral levels reaching 35 PPM.

Since BT11 enjoys soft water (35 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 BT11

Lowest mineral concentration

Softest
Sector BT11 8251 Postcodes • Soft
35 PPM2.4 °Clark

Hardest Sector in BT11

Highest mineral concentration

Highest Hardness
Sector BT11 9225 Postcodes • Soft
35 PPM2.4 °Clark

All Postcode Sectors in BT11

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