The Procedure for Removing a Pfister Faucet
Turn off the hot and cold shutoff valves and open the faucet to relieve pressure.Disconnect the faucet supply hoses from the shutoff valves by unscrewing the connectors with locking pliers or a wrench.
How do you change a faucet spout?
Replacing a slip-on spout is easy: Just loosen the setscrew (usually with a hex wrench) and pull the spout off the copper pipe that protrudes from the wall. Twist the spout as you pull and be gentle so you don’t loosen any pipe connections inside the wall. Then slide on the new spout and tighten the setscrew.