You could also consider building a bong for your watercooling. It works rather well if you build it correctly and large enough. I use the heatseeker setup basically from OCH and i have the Z4 on my cpu, no pelt, just water, and i cool my gpu using their micro block on my Ti500. Before i made the bong, i used just the closed system and my temps stayed in the 33-39c range measured next to the core of the cpu, after the bong addition, temps are 32-35c constantly, load or idle. Water temps before were 33-35c all the time, now they are always 29-33. It increased my cooling efficiency and capabilities. The bong does make a "rain" sound and if you don't like it, then it's not for you, but it sure beats a 747 delta or two. It's kinda soothing, until you have to go take a leak......again.....for the 4th time in 2 hrs.....and you haven't drank a thing! oh damn, time to go the the bathroom again! sheesh! lol.