color changing DI resin

[mtfish]

Stupid question, but I have just started using separate cation and anion resin. I have clear blue canisters and it is kind of hard to see in them. What colors am I looking for when the resin is discharged? I have a mixed non color change as the final passthru so still look at TDS numbers of finished water.

Also, since the first two resins are not mixed, I am thinking of recharging them. For you folks who recharge, which chemicals do you use to recharge cation and anion resin.

Thanks!

 

[glb]

Stupid question, but I have just started using separate cation and anion resin. I have clear blue canisters and it is kind of hard to see in them. What colors am I looking for when the resin is discharged? I have a mixed non color change as the final passthru so still look at TDS numbers of finished water.

Also, since the first two resins are not mixed, I am thinking of recharging them. For you folks who recharge, which chemicals do you use to recharge cation and anion resin.

Thanks!

Mine usually go clear when they’re depleted.