My wife does often.
But I have run my airtrap/res at the bottom of my loop for all my 'experiments' and have always gotten rid of the bubbles within minutes? (Vs inline of hrs):shrug:
I have my A/R attached to the inlet of my pump to maximize flow aka phaestus. May have to give the case a jiggle after the system is full to dislodge any stubborn pockets in the rad but?
Does this have to do w/ having a loop that is less than 1.25 meters?
When I get to the CPU subsystem 'proof of concept' testing this weekend I hope, I'll post some pics in the concoction thread and hope it will help.