If you mean you are running the bubbles through your filter, then yes, it will really do a wonderful job of getting the most CO2
in the water for your bubble (so to speak!).
The downside is that over time the CO2
concentration can damage the impeller of your filter, but it might not be such a big deal depending upon what kind of filter it is (H.O.T. Magnum, or another kind?).
I am sure you are aware, but it is a knee-jerk reaction on my part to make sure you know the KH
of your water before you inject CO2
. Forgive me!