The pink dot indicate the problem, coolants accumulated and left blue mark inside that corner of the tube.

Great info Olle P and johnyj. I've been thinking about inserting fixed plastic L-joints in those nasty corners. This way I'd be sure that the tubes would never jam at the bends. johnyj: is there enough room to do that in the unit? just to be clear, i'm thinking about this (sorry about the languange...

Thanks Olle for the explain! :) I spent 2 evening, now it's up and running again. Replaced jammed tubes, covered most of the turning area carefully with the metal spring, test! Even the degassing went much quicker, done in less than 2 minutes. I have never seen the flow indicator spin like this fast...

I had the same problem and have to switch back to using Resorator 1, which provide much higher pressure. I also heard that many complains about the R-2's pump/flow indicator etc... :? But yesterday I finally disassembled the whole R-2 unit and figured out the root cause of the problem! It is an old ...