I LOVED my nipple waterer made out of a gallon milk jug... used it for over a year, but suddenly they started leaking. And not from the grommet, from the actual nipple. Just dripping all the time. So I ordered new ones (and paid that ridiculous shipping from FarmTek), but they do the exact same thing! Any thoughts??? Sorry to highjack the thread, but it seems like all the nipple experts are here...