Postcode water checker
What's really in your tap water?
Type any English postcode and we'll show you the likely hardness, pH, the local water company, the common issues we see in that area, and the Pureau system that fits your home best.
Every English postcode area, based on public utility data.
We combine published hardness data from Thames Water, Affinity, Southern, South East, SES, Portsmouth, Wessex, Bristol, Bournemouth, South West, Severn Trent, South Staffs, Anglian, Essex & Suffolk, Cambridge, Yorkshire, Northumbrian and United Utilities with British Geological Survey aquifer maps. Actual readings vary, we always confirm on site before installing.