Will I have problems with air in the system?

I'm building a watercooling system with the radiator on top, like it is in a Koolance. Now everyone says to put a t-line in at the higest point in the system, but that is not feasable here. So, will a t-line work in this case? Or am I going to need a reservoir to make sure I catch most of the air bubbles?

Holy cow... I think this is the first computer-related question I have ASKED in over 3 months!

In my system the T is lower than the highest block. And it still bleeds out all of the air. Here's a pic of how I did it