just purchased a korallin calcium reactor for my 110. the insructions are so vague. no pictures, no explanation,there are parts in there they dont even mention. a little white plastic part with graduations on it that they dont tell you what to do with. im thinking of drilling a hole in my pvc return line and inserting a 1/4 inch barb and inline john guest shut off to supply the reactor with aquarium water. any suggestions.