Just lugged a new OCS 8 section Cast Ray rad home, and as I rolled it slowly bottom to top to move it noticed rattling inside seeming to come from the top. Should I return it? Maybe it's just a loose bit of casting excess that will come out in my Adey filter? I also found a circular piece of CI just inside the input connection--perhaps the rattling is from the same kind of piece on the output side? Output side has piece of protective plastic covering, input does not. Would rather not lug this thing back.
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