09-17-2010, 07:47 PM
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well thank you all for the votes of confidence... i will state up front that after considering them myself for some time and doing a tone of reading that even with the new ORA manderines i am not a fan of them in a system under 75 gallons less than a year or two old and even then i believe you are pressing it....
that said lets get into the real question at hand... as for the over flow just because it CAN
handle that flow rate does not mean it HAS
to have that rate... when you plum it all up and get your pump in place you should put a "T" just up from the pump that returns water back to the other side of the refugium.... on this extension that goes horizontal you put on a ball valve... this is what you use to regulate the flow back to the tank... now that said keep in mind the overflow and plumbing to the fuge from the tank is fed by pressure and gravity .. so only what you put in is what will come out provided you "tune" the flow.... now if you are "that huy" (and i am) you could make your own over flow and not put out the money for a commercial one..