I'm new to watercooling but I was curious about how it works (as far as I can tell it's a bit like an electric circuit. Anyway, my ponderingment was whether it was feasible to cool two loops with just one pump. I did a rough drawing in paint, green is the tubing with Y connectors where it splits and meets again. So how would this affect performance, would it even work at all? Should different tube sizes be used?