Can any one help me figure this out? Im creating my own watercooling system and i just wanted to know if the heater core or radiator inlet and outlet can be either side, say I want to let the water from the pump go into to the right nozzle and come out the left, is this possible? Mostly I've seen it the other way around and iw as just wondering is it possible for water to go in from either nozzle and come out the other? thanks for your help guys.