UK Water Quality Report • 2026 Data

Water Hardness in BT4

Water supply analysis across 4 postcode sectors in BT4 (Northern Ireland Water).

Outcode Avg Hardness35 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode BT4

For residents and businesses in outcode BT4, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that BT4 averages 35 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in BT4. The lowest mineral concentration is recorded in sector BT4 1 at 35 PPM, whereas sector BT4 9 experiences higher mineral levels reaching 35 PPM.

Since BT4 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 BT4

Lowest mineral concentration

Softest
Sector BT4 1231 Postcodes • Soft
35 PPM2.4 °Clark

Hardest Sector in BT4

Highest mineral concentration

Highest Hardness
Sector BT4 911 Postcodes • Soft
35 PPM2.4 °Clark

All Postcode Sectors in BT4

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