Runing DI in stages?

[anthony]

Wanted to see how everyone was running their DI.. Cation, anion,messed or opposite or mixed bed only?looking for suggestions

 

[york1]

I have 2 stages of the color changing type from BRS. I haven't really looked into the different types

 

[anthony]

I have 2 stages of the color changing type from BRS. I haven't really looked into the different types

Mixed bed? Cation?anion ? Which two are you currently running if you don't mind my asking..? I'm seeing all these. BRS videos that suggest running all three but that could just be their attempt to sell more product.. trying to figure that part out