Water Softener?
Do you mind posting a picture of it here for us? I might be able to help
We were told by our plumber our softener of 28 years "couldn't be fixed" because it was "too old." Well, one rebuild kit later (AU$84), we had that old baby chugging away. We also needed new resins, which was very expensive ($300), but that was for a .75 cu. ft. system, and in the UK, I hear that you have smaller systems.
Eventually, the rebuilt one started leaking lots (Not even 7 months later) (my bad luck, apparently not common), and I tried using parts from "the scrapper" and everything, to no avail. So we bit the bullet, and purchased a new "head" for it ($300), and its been over a year since we've had trouble, though I'm still trying to fix the air in the water lines after regeneration.
What I'm trying to say is, fixing your softener might be fun! Its DIY, and fairly cheap. Take a peep at the website below, and they might be able to help you. Why deal with the possibility of your appliances scaling up, wasting you money and time, when you could fix this quickly and easily?<span style="white-space: pre;"> </span>