So I've had my EK 140 pump/res combo unit for a year now and i'm sick of it as it's stressing me out! It doesn't seem to have a proper seal and the res can pop off at anytime if there is too much pressure in the system or the case get a nudge. Also it's leaking air back into the water inlet tube so I have a nice bit bubble just below my GPU but it doesn't seem to affect temps, GPU 59C max playing AC origins CPU 69C max. (specs below) So tomorrow I going to be swapping it out for an Alphacool eisbecher D5 250ml, I have a drain port fitted but it only drains so much then stops, If I pull off the tube to the inlet then things start to flow and I have to quickly attach another tube going into a bottle before it goes everywhere and I make a mess of it. The past month the res has leaked twice on me getting onto the motherboard and just killing it till it dries out and it's fine again, but during this time i'm nearly crying as I thought I killed the motherboard both times. I even bought another z170-e which turns out I don't need but it good that I have a back up I suppose. So to all you experienced watercoolers, how would you tackle tomorrows job, step by step.