Harpo, I didn't go the whole threadless bit by I have used your ideas to make a similar type of dip tube for my 3 keg setup. I use 3 of these in the boil, mash, and hlt kegs. I have 1.5" Tri clamps on each of the vessels. I fabbed these by ordering a 1.5" by 1/2" npt coupler. I then bored...