Found a place pretty close by that could tig stainless couplers in my megapot and converted sanke...pretty cheap too: $20 for 2 welds. Dropped 'em off and went to get something to eat while the work was being done. Only problem is i neglected to specify that i wanted the couplers welded through the wall so i could reach the threads from both side; they just welded 'em to the outside. Although i'll still be able to use them for a sightglass/thermometer (was more towards the bottom of the to do list) I was still a little disappointed in myself for not being specific...can't fashion a diptube if i can't get to the threads on the inside of the vessel.
Hopefully you won't make the same mistake
Can you solder copper? If so I can help you. My kettle's thermometer port only has threads on the outside, but I wanted to put a tube on the inside and cobbled something together that really worked well.
it was a union....threads on the inside (unexposed)...have another idea for me?
I would just ream out the hole in the keg if its smaller than the union and just get a tap and chase the threads to clean them and use the same fitting as nostalgia used . Or you could just use a small nipple
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