Rickster said:
I still can't see the t-line res, but it's ok, I kind of understand what you mean. It's like one of those on a gas tank. Not sure where I can find these. Plumbing section maybe?
ok the "reservoir" is the upward turning piece of tubing which just ends up in the top of the case and plugged.
Now a T line is just a T fitting (or the principle of a T) inline with the liquid flow. As the fluid passes through the fitting going from say the south bridge block to the pump, the part of the T fitting that sticks straight up (envision an upside down T with the leg sticking straight up), also has some fluid in it part of the way and the rest is air.
This small amount of liquid is essentially the reservoir of water. It's the same principle as a dedicated reservoir unit...has fluid and air in it, only the section of tubing attached to the leg of the upside down T fitting, is much smaller and...cheaper
When you look at that shut of valve (thing with the blue knob), it's attached to a delrin elbow (the black plastic square thingie). That elbow is attached to the full cover EK water block on the gfx card. As the fluid passes up to that waterblock from the block below it via the short 2" piece of tubing, it is forced through the passage of the waterblock. At that junction where it enters the waterblock (from below) I have the black elbow attached on top. This essentially creates the T fitting...the elbow, shut off and 8" piece of tubing becoming in effect, the upward pointing leg of an upside down T.
This is what I meant as a T reservoir...it's a T fitting (principle) with a reservoir (reserve of fluid) of fluid in the tube. So as air is bled out of the water, it will pass up that elbow/tube passage and the reservoir of fluid in the tube will drain into the system replaceing the air. That is all a dedicated reservoir is for, they just appeal to people better than a short piece of tubing attached to a fitting.
I found these 1/4 thread fittings at a company local here called Fastenal. 2 in a bag for $13. They are high quality fittings.