When we were living in the old bungalow, while we were building our house, our Minimax twin cylinder softener packed up, probably around ten years ago. We thought we would try an electric softener as they were a fair bit cheaper, and we bought the Eco15 from Wrekin. It did work ok, but unfortunately the built in timer didn't remember the settings if there was a power cut. As a result it sometimes did a regeneration cycle during the day. It also wouldn't take salt blocks so we had to use salt pellets. When we moved into the new house we decided to go back to a twin cylinder and I fitted a Harvey Crown Softener. This was some time ago, so models have probably changed.