Quote Originally Posted by skinnee View Post
By having the loop order Res > Pump > Rad > Blocks > Res you remove all of the heat dump from the pump and have the liquid going from Rad to blocks, all the "heated coolant" will go to the res, heat dump of the pump to rad again. I have my all three of my loops running that way.
Thats the positive about the first draw. Fresh cold water straight to the blocks which seems pretty smart.