2torial #0458: Learn2 Fix a Leaky Faucet (Continued) Turn off the water Ninety-nine percent of the time, you're going to find a water valve right under your sink that controls the correct faucet. If not, you're going to have to follow the plumbing line to the nearest one. When you have found that valve, turn it clockwise until you can't anymore. If the valve resists being turned, put a drop or two of oil right where the stem disapears into the large nut. Then use the wrench to loosen the nut one complete turn, and tighten it back up by hand. Wait for a couple of minutes and try again. Step 2