I'm getting ready to install a Delta shower-only faucet, which will require some soldering, something I don't have a lot of experience with.
This model takes threaded nipples. Is it better to do the solder connection first, then screw in the nipple, or attach nipple first and then solder up the rest? Does the copper nipple keep enough heat away from the faucet body?
Do I need to take apart the faucet to avoid frying the internal parts. (Is that even possible?) Does the soldering affect the teflon tape on the screw-in fittings?
Also, what do folks think of these new pre-soldered fittings?