- Joined
- Feb 14, 2019
- Messages
- 1,730
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- What state or country do you live in
- Michigan
Lots of reefers are now using CO2 scrubbers, and I'm guessing most of you are using sodium hydroxide pellets with the color indicator. I tried them some years ago and was irritated how fast they deplete. Lots of complaints I'm hearing from other reefers on the same topic.
So, here's my train of thought. Does the pellet of sodium hydroxide deplete due to contact with CO2, or just the surface? Kind of like being forced to change ink jet cartridges when they arent empty because they have a chip on them.
A simple way to prove this would be to mix some "depleted" pellets in a cup of water vs the same volume of fresh pellets in another cup of water and just measure the pH. If the "depleted" pellets are indeed depleted they won't do much. However, if my theory is right the depleted pellets will dissolve and be almost the same pH as new pellets.....along with heat the water up.
Unless there's something I'm missing at a minimum this might be worth somebody's time to test.
So, here's my train of thought. Does the pellet of sodium hydroxide deplete due to contact with CO2, or just the surface? Kind of like being forced to change ink jet cartridges when they arent empty because they have a chip on them.
A simple way to prove this would be to mix some "depleted" pellets in a cup of water vs the same volume of fresh pellets in another cup of water and just measure the pH. If the "depleted" pellets are indeed depleted they won't do much. However, if my theory is right the depleted pellets will dissolve and be almost the same pH as new pellets.....along with heat the water up.
Unless there's something I'm missing at a minimum this might be worth somebody's time to test.

