[meritaten]

So I am sitting here pumping as normal... I hear a funny noise and I look down and milk is getting sucked into the tubing. What the heck? This has never happened before. I wasn't having a letdown or anything at the time. EEEEEK!

[mgm78]

is the valve/membrane working properly? that is so weird. you have a medela?

[shortlette]

I'm sitting here trying to picture my flanges .... do you have a PIS?? I thought it would be impossible for the milk to go into the tubing - unless part of the plastic inside has come apart?? Even if I pumped until the bottles were over-full milk never went up the tubes, just out the base of the flange.

[amberrose22]

I have had this happen to me 3 times now, twice was while I was driving and pumping (shhh). I have no idea what has caused it

[luckylucyrn1]

It happened to me a few times when I had kinked the tubing somehow right at where it inserts into the horn. I was holding them with my forearm and not paying attention

[L-SBB]

wow that is weird...it hasn't happened to me (yet) but I'm looking at my pump trying to figure out how it could get up there to be sucked in...hmmm...

[meritaten]

Yeah a PiSA... I have the personalfit breastshield that I bought separately from the pump. I can't figure how the heck it could get into the tubing either... WTH?