UK Water Quality Report • 2026 Data

Water Hardness in BT5

Water supply analysis across 5 postcode sectors in BT5 (Northern Ireland Water).

Outcode Avg Hardness35 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode BT5

Looking for water hardness metrics in BT5? Water supplied by Northern Ireland Water in this outcode registers a baseline average of 35 PPM across 5 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in BT5. The lowest mineral concentration is recorded in sector BT5 4 at 35 PPM, whereas sector BT5 9 experiences higher mineral levels reaching 35 PPM.

Since BT5 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 BT5

Lowest mineral concentration

Softest
Sector BT5 4185 Postcodes • Soft
35 PPM2.4 °Clark

Hardest Sector in BT5

Highest mineral concentration

Highest Hardness
Sector BT5 935 Postcodes • Soft
35 PPM2.4 °Clark

All Postcode Sectors in BT5

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