I am modifying the tap. At the end of the tap is a round teflon plug that seals against the fitting. It compresses too easily and is damaged so that it doesn’t seal and the steam leaks a bit. So I took the part out, dug out the Teflon plastic piece, and replaced it with a piece of Viton gasket stock that I bought and fashioned a bit to fit. I don’t have a photo but I can try to get one later.