Originally Posted by Tomahok2
I attached some photos of my recently filled and leak tested rig. I am concerned that my res may be filled too much, is this a concern? Is fluid expansion a real issue, or is it too small to be relevant in a pc?
Not that you should be getting any where near hot enough. But air left in the reservoir will expand and put additional pressure in your system when it is heated. The less air the better. We are talking minimal amount of psi added though.