To create a final waterproof barrier, apply a thin, neat bead of plumber's putty or tub & tile silicone caulk around the base of the spout where it meets the wall. This prevents water from splashing behind the spout and into the wall cavity. Once sealed, turn on the water and observe the spout. Check for leaks around the base. Pull the diverter to send water to the showerhead. Check that the diverter works correctly and that water is not leaking excessively from the spout. A small drip from the spout while the shower is on can be normal, but a steady stream indicates a faulty diverter inside the new spout.
Step 6/6
Seal and Test for Leaks2 min