C02 rx questions.......

[Chin_Lee]

I'm in the setting up my calcium reactor stage and I've got my efluent cranked up to about 275ml/min (just over a cup) right now because my reactor cannot maintain the alk level in my tank.
My reactor is the dj88 design and currently holds two full big jars of media, effluent is 7.0 ph, my bpm is at 90. My ph has dropped from daytime 8.2 to 7.9. I also have a beckett skimmer that sucks in air like mad and i'm hoping to minimize the lowered ph effect.
So my first question is:
If I were to place the c02 effluent in pre-skimmer water, when that water goes through the skimmer, will it assist with removal of dissolved c02 therefore minimize the ph drop associated with calcium reactors or will it just screw my my beckett skimmer's ability to foam?

I plan to add another jar of media to increase the capacity of my reactor which I suspect I will need to increase the bpm slightly. So my second question is:
How else can i get the most out of my reactor?

edited because I hate spelling errors