Super cheapo amazon model I think, it came with the house.
​
Yes, I fitted one into the incoming main to the house. Things to note:-
Drinking water from a softener is absolutly safe. It does NOT contain salt. The salt is used to wash the machine out and recharge it for softening.
If a softener does not use salt its snake oil - does not work.
They are easy to fit yourself with a little plumbing knowledge.
This is the one I fitted - it's for a large house. Smaller and cheaper ones are available.
https://www.amazon.co.uk/Water2Buy-W2B800-Softener-efficient-people/dp/B007ZC37II?ref\_=ast\_sto\_dp
They DO work - no more limescale, lovely soapy showers etc.