I posted a gripe a while back on the new aquatainer vents and I'm still looking for an alternative. There is a customer feedback link on the reliance site listed by big al. It might not do any good, but maybe if there were enough complaints, they would return to the old style screw top vents. And maybe pigs will fly... But you never know.

thseng, would you let us know if you have any luck with modifying the vent? thanks