Is it time to change the di resin? (pic included)

I have only ever seen orange / reddish orange di resin. I'd say if its not the color it was when you nought it, it's time to recharge or replace it.


A better measurement of when it needs t be replaced is to measure the TDS. If you are still getting water with. Low TDS then it's still good.

I just figured it would go from the charcoal coe to white. Not the rainbow state it's currently in. TDS are still 0-1 so I'm still good there. I guess it's probably about time to order some new filters anyway.

Anyone know how often the charcoal ones need to be done?