I understand that but this system (and your system??) is unloaded. I have looked at another chiller on a smaller scale that did the same trick (somewhere on overclockers.com, not that I can find it now

, ice formed on the evap when the cpu was idle and melted upon load. In his words, this was another form of phase change ( I suppose he is right!!! ).
Can anyone say if the evap coil is too large for the task and therefore inefficient???
LOL, the wife thought I had bought some sort of water eel !!! Looks life something from the Abyss to me!
BTW Warburtons is a registered trademark of which I have nothing to do with!!