The intentional gap could work, but only if the plane of the top of the male piece is exactly the same as the plane of the bottom of the female end (think parallel lines in a circle). That's where the seal would be, not in the threads. In order for steel threads to be liquid tight would mean that tolerances would have to be in the .00X range, and even then capillary action (same thing that allows our wicks to function) would leech liquid along the gap. If the tolerances were that tight in the threads, we would never be able to screw them together without a vice and a pipe wrench.
This could also explain why leaks dont appear right way. Capillary action could take days to creep through the length of the threads that are this fine. And if the threads are bottoming out in the female section, the o-rings aren't being compressed enough to complete the seal.
This could also explain why leaks dont appear right way. Capillary action could take days to creep through the length of the threads that are this fine. And if the threads are bottoming out in the female section, the o-rings aren't being compressed enough to complete the seal.
