These can be a less expensive option and still soften your water supply fully. The Midi HE model can soften the water supply in a family home for £1000 fully installed. You will need a plug socket nearby. These machines are single cylinder so they need to regenerate at night when water is not being used. They use an electronic timer. However flow rates through these machines are very good when correctly installed.
These water softeners will remove all scale from your water. They also soften your water. This means no more scrubbing of shower screens and bathtubs, less skin dryness, softer hair and clothes. Also soft water makes more bubbles from soap, shampoo and washing powder. In addition to these things a softener will clean out pipework and hot water tanks of hardened scale which has built up over time. These savings in soaps ,energy efficiency and less maintenance will pay for your new water softener over three to four years.