Such a small part. Such a tiny, insignificant part. Such a small thing, it's no wonder I left it in the dishwasher. But without that part, my pump doesn't work.
Time to learn to hand-express.
Update: the hand-expressing actually went ok. Didn't get the full amount I need to keep up with the baby, but it's better than nothing . . . and better than exploding. I think I may have weirded out someone in the ladies room (I didn't feel like treking up to the pumping room to NOT use my pump) by sitting very quietly in a stall for SEVERAL minutes. Oh well.
And tonight I cooked while pumping with the battery pack. Serious multi-tasking.