Shower faucet leaks after replacement
I replaced the faucet with diverter with a brand new one. For what it's worth, the pipe (stub) looks super corroded. I unscrewed the stub, cleaned it with some dental tools and steel wool. Once I got all the gunk off of it and cleaned the threads, I wrapped it in new Teflon tape and screwed it back into the fitting.
I turned the stub until it was between 3.75 - 4 inches from the wall. I wrapped the protruding threads in Teflon tape and installed brand new diverter and it still leaks from the mouth of the faucet with the diverter pulled up.
What do? Faulty faucet? How did I mess it up?
Here are some pictures of the female end of the pipe as it exits from the wall and the male stub before opening cleaned it.