[nikhsub1]

Originally posted by pHaestus
I would wait for the air to completely bleed. It is not possible to tell from this picture whether you are using a 90 degree elbow from the block's outlet to the pump intake. If so, I would rethink the loop so that isn't needed.

A system will have a sweet spot: too low and the waterblock's performance is compromised, but too high and radiator performance typically suffers. I wouldn't think an Eheim 1250 would add enough heat to make any difference; air in the rad certainly would though.

There are no 90 degree bends anywhere in the system. The reason for this "test" is that just about everyone uses the 1250 over the 1048 in a 1/2" system. I wanted to see for myself what the hooplah is all about, and so far, people seem to be better off with the 1048. The H20 Motto has always been, "more flow is better, more gph etc. But, I will wait for the system to bleed (should be today) and let the as3 settle too. But, if temps are even the SAME as with the 1048, why would anyone want the 1250? Food for thought.