I been trying to install an exterior water spigot for the past few hours. I bought a new 1/2 inch frost proof lawn faucet from arrowhead brass and plumbing llc and the salesperson recommended that I get a shark bite 1/2" x 1/2" FNPT female adapter to slide over my existing copper piping inside the basement of my house. The shark bite slide over my copper tubing no problem at all. The problem I am having with my spigot is that it is consistently leaking at the threads when I connect it to the shark bite no matter how much or little teflon tape I put on it. When the tap is turned all the way on and I turn on the water supply second, it does not leak from the threads of the spigot, however as soon as I turn the spigot off, it starts to drip rather quickly.
I saw that the threads on the on the spigot seem to be quite pronounced and they are fairly sharp too. I also noticed that when I take the spigot out from the shark bite, almost without fail the teflon tape is shredded. I made sure to put the teflon tape on clockwise so that it would not unravel when I screw it on to the shark bite and it still does not seem to work.
I was wondering is there anything I am doing wrong? Is there anything else I could try before attempting to bring these items back if possible? Thank you all so much.