
Do you want a softener in order to have softer water throughout your house, or are you just wanting improved drinking water?
We live in Gloucestershire and our water is also hard and have had Britta fit a filter system to our kitchen tap. The new tap has three knobs, hot, cold and filtered water. The filtered water tap runs off the mains, through a filter, then to the tap. The filter needs to be changed, I think at three monthly intervals although there is a green/red light on the tap to tell you, but we do leave it a bit longer. Makes drinking water taste better and the kettle doesn't fur up so much and tea in particular tastes better too.
We also have a static caravan on the Suffolk coast and I had noticed that the water is hard. But didn't think it any worse then at home. Does it vary across Suffolk?