Originally Posted by bakageta
QDC's will definitely increase restriction, I wouldn't put them on every single component as that's likely to hurt your flow rate. I'd leave your entire loop hooked up, set your PC on it's side, and pull the CPU block off to take a look at the thermal paste on your mount. It should be possible unless you've got a ton of rotary fittings or something, with just straight fittings it should be relatively easy to do without a problem. As for future draining without a dedicated drain line: position your case so one of the components is the lowest point in the loop, CPU block is often pretty easy to do this on. Remove the CPU block, position it over a bucket away from the hardware. Remove fittings, allow water to drain.
I'm still a noob when it comes to watercooling so bare with me
I have regular fittings with hose clamps on all my components and a T-line for drainage. When I drained it a year ago there was still a bunch of water left. I wasn't able to take apart the rad, and I'd like to be able to clean it in the future so maybe a few QDC's (ie. 4) at the radiator would help.
What do you think?