I've used the EK brand coolant before in my (overclocked) watercooled PC, blue, it hasn't leeched onto the clear pipes in any way. Previously though I just used the cheapest possible green radiator coolant I could find, didn't touch it for 2.5 years and when taken apart everything was good as new. The EK I paid a bit for, I'd use it again but wasted heaps as my watercooling radiator leaked, so I think I'll just do the cheap coolant next time.

How were things like the seals, and did a heap of coolant piss everywhere when you cut off the pipes? I suspect my Quad has either a dicky pump or the coolant has dried up. It actually works better when I lay the case on its side, so I suspect something is up. However, no coolant has leaked on the PSU tray.

Thanks for posting the info! Looks like all I'll need is some 3.8/8 tubing and hose clamps (I'm obsessed about those when watercooling my PC).

JB