Can someone explain the term "effluent"? It is used as in "reactor effluent, pH effluent"; what exactly makes up the effluent? I am looking into getting my first Ca reactor/ Kalk reactor combo and want to get input on what is the most user friendly/safest and effective. I have read that a dual chamber fluidized reactor is most efficient. Don't know exactly a whole lot about this. Seems rather technical and not user friendly.