As I said in my first response - any thread sealant you want. That seems to have been drowned out in the noise. If you don't like tape use a residential plumbing paste from your box store..Okay, so I’ve read through this whole thread and have a question to add on. I have only ever used the cheap hardware store ptfe/Teflon tape for sealing and I absolutely hate it. For general water use cases, would it be accepted that a general purpose liquid sealant be a better option? I’m not a plumber by any means so I have been learning a lot from this thread. Most of the experience I have is related to soldering copper and installing fixtures and toilets. Which it seems recently most fixtures I’ve bought come with a small roll of tape and/or some sort of seal inside.
It matters not a whit. This is a low pressure, low tech water line - not bombay door plumbing on a B2 nuclear bomber.
Dan
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