I need a new water softener
My 17 yr old Culligan 812 is ineed of replacement. I have decided on a Fleck 2510.
My hardness is 20 gr with <.10 iron and .30 maganese. we have people in our family.>I have used all of the online calculators that tell me I need either a 1.5, 2.0 or even a 2.5 cubic ft. unit.
What size softener would any of you recommend and how many lbs of salt at regen. I would appreciate any advice you may have.