Installing A Tub Spout
Disconnect the old spout. Check the underside of the spout to see if there is a setscrew. If so, loosen the screw and slide off the spout. If there isn't a setscrew, use a pipe wrench to unscrew the spout from the threaded pipe. Twisting too hard can potentially bend the spout nipple, especially if it is copper. Apply joint compound to the nipple threads.
Install the new spout. Slide the new spout over the pipe and snug to the wall. If it has a setscrew, tighten it. If the pipe is threaded, screw on the spout hand-tight. If further tightening is required, put tape over the teeth of water-pump pliers to prevent scratchin, and tighten until the spout is snug. Run silicone caulk around the spout or escutcheon plate if there is one.
