I am in the process of getting ready to set up a 75g fowlr system. I currently have a Triton 3 stage r/o 50g/day system that I used for my f/w tank. Will this work for water for my new marine tank? or do I need the d/i ?? I bought this filter as we are on a well and the water was extremely hard and I tired of going to the lfs to purchase change water......
