I've currently got 2 stages of the mixed-bed DI resin. I start with 7-10 TDS and end with 0. It's kind of hard to tell in the photo, but it looks like either the cation beads or anion beads (I forget which is which) are being used up and changing color MUCH faster than the other. If you look closely, it appears one of the colors is used up all the way to the top while the other is only about 20% used up. Am I seeing that right? Do I need to switch to the Pro 3-stage setup with independent cation and anion stages? Can I test the water to see what might be eating up the resin so quickly? Or is what I'm seeing in the canister normal?
Thanks in advance!
Thanks in advance!