UK Water Quality Report • 2026 Data

Water Hardness in BT18

Water supply analysis across 3 postcode sectors in BT18 (Northern Ireland Water).

Outcode Avg Hardness35 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode BT18

Analyzing water quality disclosures across all 3 postcode sectors in outcode BT18 reveals an average water hardness of 35 PPM (Soft Water). Public water supply across this area is managed by Northern Ireland Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in BT18. The lowest mineral concentration is recorded in sector BT18 0 at 35 PPM, whereas sector BT18 9 experiences higher mineral levels reaching 35 PPM.

Since BT18 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 BT18

Lowest mineral concentration

Softest
Sector BT18 0174 Postcodes • Soft
35 PPM2.4 °Clark

Hardest Sector in BT18

Highest mineral concentration

Highest Hardness
Sector BT18 9216 Postcodes • Soft
35 PPM2.4 °Clark

All Postcode Sectors in BT18

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