which holes in a radiator are either inlet or outlet?

enjoiskaterguy

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Dec 21, 2013
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Hey guys,

Just wondering....does it matter which radiator hole is the inlet and which is the outlet. Will the water cool better if the inlet is on one side of the rad and the outlet is the totally other end.....(or is that single end hole just some sort of drain hole?)

Fyi....I have the Alphacool NexXoS UT60 420mm Radaitor.