DI resin expired already?

[mark]

all depends on the post RO measurements to how hard the DI needs to work.

TDS last time I measured in Edm was out of the tap at 168, 007 after my membrane and still get more than 6 months out of my DI resin. This is at about 2g a day plus water changes.

[NastayNatron]

Its leaving my membrane at between 1 and 2 ppm. Im starting to think maybe I got a bad DI replacement cartridge. . . Its a coralife R/o Unit