I have a dual tank water softener. Teh cover says Culligan but its a Fleck 9000 valve. Anyway, it works very well, but my question is, how do the 'non salt' water conditioners work? I cannot find ANY info online on how they actually work for me to make my own assessment as teo whether they are snake oil or what.
Whats the deal with them? Ive always had a salt style, and it...well...works, always. Can someone tell me how the unit work that do not use any salt?