Lincoln and the County of Lincolnshire are subject to a varying level of very hard water. Some area's of Lincolnshire, in particular across the Lincolnshire Fens is some of the hardest water in the entire Country.
Lincolnshire's water supply is managed and treated by Anglian Water
and they offer a handy post code search engine for the exact hardness of your water, across the County, which can be found here
It is surprising how many of Lincolnshire's long standing inhabitants, still remember water softeners from the earliest models, as childhood memories. It is also an issue that more recent residents are unaware of, or are unaware of the solutions on the market and the affordability of the system selections Greens sell.