I don't think I was losing flow. When I took some fluid out of the res to make the flow more visible it was torrential as usual. Only lost flow was around the bubble, at least that's my theory
. If you read my lengthy first post, the problem seemed to be moving.. CPU, chipset, GPU ... Wherever the bubble sat cooling didn't happen.
I had literally turned this thing upside down and sideways while bleeding cause of the big rad on the top. Don't know what broke the bubble loose finally but I had the loop pumping on external power at every angle imaginable yesterday
