Step 5 · Install the New Spout
For a THREAD-ON spout: Wrap the male threads on the pipe adapter with 2-3 layers of Teflon tape in a clockwise direction (the same direction you will tighten the spout). This helps create a watertight seal. Screw the new spout onto the pipe by hand until it is snug and pointing straight down. If it's not tight enough, use a wrench (with a rag to protect the finish) to give it another quarter to half turn. Do not overtighten. For a SLIP-ON spout: Simply slide the new spout over the copper pipe until its base is flush against the wall. Ensure the set screw hole is facing down. Use the hex key to tighten the set screw clockwise until it is securely fastened. Do not overtighten, as this can crush the copper pipe.