Water Supply Analysis: Outcode NN18
Analyzing water quality disclosures across all 3 postcode sectors in outcode NN18 reveals an average water hardness of 310 PPM (Very Hard Water). Public water supply across this area is managed by Anglian Water, responsible for treating and delivering water to residential households.
Water chemistry can fluctuate across supply zones in NN18. The lowest mineral concentration is recorded in sector NN18 0 at 310 PPM, whereas sector NN18 9 experiences higher mineral levels reaching 310 PPM.
Due to the very hard water (310 PPM) in NN18, limescale build-up can occur on heating elements, shower heads, and boilers. Setting your dishwasher water softener to the correct level (e.g. Bosch setting H07 (Max Salt)) is strongly recommended to prevent cloudy glassware and internal scale accumulation. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.