Hi I live in the states. I Have asked a culligan guy about renting one of there di tanks. I mentioned i was going to use it with my ro filter. He asked why i was using an ro. I told him too make the di last longer. He said it would do that , but it would be cheaper just to get a water softner added to my house. Fill a storage tank with it and then run it through the di. He seemed to indicate it would do the Job but a lot cheaper. My question is if he is right surley all you cleaners in English hard water areas would use a softner instead of an ro. Anyone enlighten me
Thanks Missouri mike