Question Aio radiator tubes positionning

Corgoi

Great
Apr 12, 2019
139
2
85
So I know that in the case of a normal aio with the pump in the cpu block the tubes of the radiator are supposed to be up (I'm only talking about vertically placed radiators)

But what if the pump is in the radiator? Is the side of the rad with the pump ans tubes supposed to be down?

(Cooler: Antec Kuhler K240)