| Air bubbles in the reservoir/ tubing
I am new to the pump (< 1 month) and have a question.
The pump is a minimed 722
The past two sets, when I was under 40 units remaining, I discovered air bubbles both in the reservoir and in the tube. When I filled the reservoir I was careful both times to make sure no bubbles were present so I don't know how they got introduced into the system. These bubbles caused my sugar to go >300 with corrections not working since I was not really getting the correct dosage (I started a new set immediately when I noticed this).
Since this occurred twice in a row, I am curious if anyone else experiences this - I assume there should be no issue with running the pump down to the last 20 units or so? | 
