I have a Medela Swing pump that I use when I am at work (1-2 days/week). It's about 6 months old and I only really started using it about 3 months ago.
Anyway, last week when I was using it, I noticed a little condensation in the tubing. I followed the directions in the manual for this.
Then, this week (today) the flange seemed to get backed up with milk and the tubing got a lot of milk in it and the milk got into the motor. Again, I followed the directions to clean it up.
What I am wondering is: what is causing the milk to get backed up and/or into the tubing and motor? I can't figure it out.