Pump reservoir bubbles

Anone else ever experience bubbles forming in the reservoir after a few hours post filling? Any cause or prevention?

Fill reservoir with room temperature insulin. Fill the reservoir slowly. I have also heard that people fill their reservoirs and then let them sit upright for about 10 mins prior to putting in their pumps. This gives time for the bubbles to rise and then for you to prime them out.

I don’t know the cause or prevention of bubbles. I’ve been pumping for 20+ years, and bubbles just happen sometimes. I’ve read many ways to keep them from happening and tried them all. Bubbles appear out of nowhere, I’ve seen them in my line when I never saw one in the res! I do a bubble check every day, and when I bolus, I check the line. And then just prime it out when I discover one.