Re: cup troubleshooting
Hold it a little more firmly to get it in further before you let it go and it pops open. Once it does pop open, turn it once to make sure you have a seal. How long have you been using a cup? If it is new to you, keep trying. It takes practice but once you get it, it's wonderful and fabulous. What cup are you using?
Michelle, mom to DD (7/9/99), DD (11/12/01), and DS (4/17/07); wife to DH (8/31/96)