Ive always used my RO system for years. Last few months started just DI'in
Its so much quicker, but obvioulsy you use more resin. (not a great deal in my case)
My tap water is 050, and i can use just Di for ages, with RO i dont have to change the resin for over 12 months, and thats a small Di vessel, just the little 10" one.
So what do you use and why?
If you were paying for water on a meter, does it weigh up to use just DI as you dont waste any water or is it cheaper to RO it?
How and why did you choose your method?