Flow for Feed line for Ca reactor same as affluent?

[LeanneP]

I am trying to set up a ca reactor and have had endless issues with it. I have the pump and everything hooked up and had my flow to feed line at about 50ml/min which was suggested by another reefer. My effluent was set at about 44 drips per minute. Am I supposed to only have as much going through the feed line as is going out the effluent line? Because my bubble counter filled up with water and started leaking because of the excess water or is there something wrong with my reactor?