Review (3/5): I know how to make a pump pop up and have never encountered a problem like this.
Fought these for 10 minutes while in the shower trying to get them to pop up and could not get them to work. Finally gave up, tried again when I was out and still could not get them. My son finally got them after twisting and turning and fighting for another 20 minutes. I know how to make a pump pop up and have never encountered a problem like this.