before installing the o-ring on the bottle you must first remove the plastic ring left from the bottle cap. it is it looks like that was driven home. there customer support was very kind, but always gave me the same answer of "we will have to send that to our design team" and i would never hear back. click here for the flip version. i still think of it every once in a while for some reason and in fact was just singing it yesterday! fold in white chocolate chips and raisins. this little monkey has been keeping me busy. 