Where to Put Drain In Water Loop?

[alexsterling76]

Hi Guys & Gals, I am going to be completely draining and flushing my loop come the weekend and I had hoped to put a drain in there of some description to make life easier for me when I next need to drain the system. The problem I have got is, where the hell do I put it? As you can see from the photo I have not got a lot of room to play with, mainly because of the GPU.

I was going to attach the drain on the tubing closest to the camera but realised that is the "In" tube that goes to the CPU. The other "Out" pipe there is no room for manoeuvre. Does anybody have any suggestions for me or am I screwed? Putting the drain at the top by the radiator doesn't seem a plausible idea.
Many thanks in advance

 

[CountMike]

Main prerequisite is to be on the lowest point where liquid comes to.

 

[alexsterling76]

Yes my first thought was to stick a XSPC G1/4" T Fitting just after the tube enters the pump. I will attach a small hose with a XSPC G1/4" Stop Plug on the end of the hose. May not look the prettiest, but it's my only idea at present. I just hope I have all the parts needed

 

[CountMike]

Looks like a plan, it's pity that pump/reservoir doesn't have it.