How about using hemp to make the joint? Very thin strands on the first few threads, then thicken up the hemp strands, and dope everything. Dont over do it, or you can burst the fitting,esp. galv. fittings. Then again, i believe that hemp is outlawed in some codes.
FWIW: an old plumber told me that he had never had an issue with properly made-up hemp joints. My two cents is that i once demo'd some sound CI hemp joints that had been made 100yrs before.
Another lean, mean and leathery, old plumber was dying, so he sent for the apple of his eye, his young grandson. "Son" he said, " you see this watch i'm wearing?" "Yes Grandfather" "Well how much would you give me for it?"
