A threaded tub spout will unscrew counterclockwise, often revealing male threads on the pipe coming from the wall. A slip-on spout usually has a small set screw underneath that, when loosened, allows the spout to be pulled off. Knowing the type is crucial for choosing the correct replacement and preparing the appropriate tools for removal.

Cleaning the copper pipe with a wire brush or emery cloth removes debris and corrosion, creating a smooth, optimal surface for a seal. Plumber's tape (2-3 wraps clockwise) lubricates the threads and fills microscopic gaps, ensuring a watertight connection. Skipping these steps significantly increases the likelihood of leaks, potentially leading to costly water damage behind your wall.

You will primarily need an adjustable wrench for both removal and installation, along with a wire brush or emery cloth to clean the copper pipe. If your existing spout is soldered on, you'll also need a pipe cutter. Don't forget plumber's tape, which is essential for ensuring a watertight seal on threaded connections.

Immediately turn off the main water supply again. If threaded, carefully remove the spout, re-clean the pipe, apply fresh plumber's tape (2-3 turns clockwise), and re-tighten the spout, ensuring it's snug but not overtightened. For slip-on spouts, verify the set screw is tight and the spout is fully seated on the pipe, checking any internal O-rings.