Removing the old sink

• 1). Shut the water supply to the sink off, and open the faucet to let any water trapped inside drain out. You can shut the water off at the main valve, or at the two valves underneath the faucet.
  
  
• 2). Disconnect the supply lines from the shutoff valves with an adjustable wrench.
  
  
• 3). Remove the old faucet by removing the nuts with a basin wrench or water pump pliers. Depending on your sink, these nuts could be located on the top or bottom of the faucet. If the nuts are rusted on, apply penetrating oil to the nuts and allow it to soak in.
  
  
• 4). Lift the faucets out of the sink fixture and clean any buildup where the faucet was with a solution consisting of 50 percent vinegar and 50 percent water. Use a razor blade to scrape buildup away if necessary.
  
  
• 5). Cut away any caulk or silicon used to seal the sink against the wall with a utility knife.
  
  
• 6). Loosen any bolts underneath the sink that are holding it in place, and lift the sink away. If you're not going to reuse the mounting pedestal, remove that as well.
  
  

Installing the new sink

• 1). Remove the old mounting brace if you can't use it for the new sink, and following the manufacturer's instructions, replace it with the new mounting brace. If you're using a new mounting pedestal, place the mounting pedestal near the wall, then put the sink on top to mark where the mounting brace will go.
  
  
• 2). Place the sink onto the mounting brace and bolt it into place (and on the pedestal if you're reusing the old one).
  
  
• 3). Line up the spout in the center hole of the sink and attach it by sliding a washer over the threads and screwing on the mounting nut. Tighten the nut with your hand, making sure that the spout remains straight, then use a basin wrench to tighten it farther.
  
  
• 4). Tighten the three-way spout tee underneath the spout with your hand, making sure that the openings that branch off face the hot-and cold-water valves. Lock it into position by using an Allen wrench on the thread on back.
  
  
• 5). Loosen the mounting nut and washer on the cold water valve (the right one when you're facing the sink) and slide it up through the hole in the sink fixture. Slide the escutcheon (the decorative plate that goes around the faucet) over top of the valve, and tighten the mounting nut under the sink. Install the hot water valve the same way.
  
  
• 6). Attach the supply lines to the spout tee and the hot and cold water valves, tightening them by hand, then use an adjustable wrench to give them another quarter-turn.
  
  
• 7). Slide the handles of the faucets on the faucet valves, and align them so that they point straight to the sides when turned off and straight ahead when turned on. Screw them into place.
  
  
• 8). Assemble the drain stopper and rod following the instructions provided with the faucet. Test the stopper to make sure that it opens enough so that water can drain out, and adjust it if necessary.
  
  
• 9). Turn on the water and check for leaks, then take the aerator (the piece on the tip of the spout) off and run the faucet to flush any debris that might be there. Put the aerator back on.
  
  
• 10
  
  Install the mounting pedestal (if you're not reusing the old one), and bolt it into place. Apply caulk or silicone gel where the sink meets the wall.