BRS CO2 absorbent not changing colors?

[MartinM]

Has anyone else had this problem? Using the 3rd to largest Reef Octopus skimmer there is on max, I’ve moved a lot of air through the large BRS CO2 scrubber over about 6 weeks, and it’s still white. My CO2 is atmospheric levels (~4xx PPM) and the air was somewhat recirculated, but I still expected to see at least some color change…? I know it was moving air because I saw a pH bump. I’m not seeing the benefits now so I’m pretty sure it’s exhausted, but why is it still white if so?

 

[radfly]

Mine is bad too, there is a thread here where others are reporting the same issue. Purchased mine three weeks ago.

 

[TurboTang]

Has anyone else had this problem? Using the 3rd to largest Reef Octopus skimmer there is on max, I’ve moved a lot of air through the large BRS CO2 scrubber over about 6 weeks, and it’s still white. My CO2 is atmospheric levels (~4xx PPM) and the air was somewhat recirculated, but I still expected to see at least some color change…? I know it was moving air because I saw a pH bump. I’m not seeing the benefits now so I’m pretty sure it’s exhausted, but why is it still white if so?

It's the same for me. Color never changes. After 5 or 6 weeks my ph drops and I change it out.

 

[Reefer Matt]

I have used this before. It only lasted for a week tops. The color only changes for a day or so, and then goes back to white.

 

[IKD]

I have used this before. It only lasted for a week tops. The color only changes for a day or so, and then goes back to white.

I noticed the same thing.