Wow, nice drawing. Anyway thats quite an obvious problem which we saw in our trial bottles. One, it can't leak so its not a huge problem, 2, we corrected the problem by making it flush on the inside and then welding it in so that it wont loosen up or fall out. (or be tightened accidently?) Anyway my package is setup so that everything is already perfect, just drill tap and make flush and connect. All done.