system
A chat on subreddit /r/pcmasterrace
human
Other than not having the reservoir feed into the pump rather than the other way around, the order of the loop does not matter and no one who understands custom loops appropriately should claim otherwise.
gpt
The pump is at the bottom of the resevoir, one unit, and is at the lowest point in the case (back side of mobo).  I don't think you were saying anything about my situation, but I did want to add that detail for some reason.

Only thing I could think of is not wanting 'hot' water in the resevoir.