I just heard something that doesn't sit right with me.

"You cannot remove moisture from POE."

I know that POE's are extremely hygroscopic, and that exposure to the atmosphere must be minimised.
It is however inevitable that some moisture will be absorbed by the oil when adding it into the system, or if there is a leak. I really can not see the wide spread use of POE's if you can not remove the moisture from the oil and therefore the system by vaccing/triple vaccing to a decent level, ie 500 microns minimum.

Discuss......