Water Hardness in Guildford - GU Postcode Area
Top 10 Hard Water Areas in England
(Listed by Postcode)
1) HU - Hull
2) GU - Guildford
3) PE - Peterborough
4) PO - Portsmouth
5) SL - Slough
6) SO - Southampton
7) SS - Southend-on-Sea
8) CT - Canterbury
9) DN - Doncaster
=10) IP - Ipswich
=10) NR - Norwich
Note: the above list of hard water areas in England is based on sales of Dyna Pipe Water Descalers, not the actual water hardness. However, the maps are based on water hardness.