Lance A. Lot
SLASH Member
I changed out my color changing DI resin in one of the 2 canisters because about 1/3 of the cartridge to 1/2 was brown. I was also getting 5 tds coming out of the filter. My question is: Do I need to change out all the resin or just the brown/orange part? I changed the whole thing but I was thinking about if I am throwing away money when I don't save the DI resin that hasn't changed color. 
