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Learn how to assemble and fit your new sink into place quickly and efficiently. Get the necessary tools for the job. You can install a new sink with basic tools and new components that match the valves already installed in your plumbing. Turn off the water supply valves. Typically located beneath the sink, it’s critical that you shut off the water supply to the sink before you remove it. If the valves are not beneath the sink, then you’ll have to turn off the main water supply.
This is typically located on a lower level or the basement near the water meter. Remove the old sink, if necessary. If you’re replacing a sink, you’ll obviously need to remove the sink that’s in place before installing the new one. Disconnect the supply and drain lines from the faucet, using locking pliers or a crescent wrench. A small amount of water may leak out when you do this, which is normal. Just use a bucket or a towel to handle the water that leaks out.
Remove the current sink by sliding the edge of a putty knife around the perimeter of the bathroom sink, loosening any caulk that connects it. Measure the new sink to make sure it fits the space. All new sinks should come with a template of the mounting opening, marking the location of the faucet holes, including a cutout for the sink. You can use the template to make sure the sink fits in the desired location. If it doesn’t, you may need to do some trimming or, or cut the entire opening if you’re installing a sink in a house under construction.
Put the sink in place and caulk it. Put a thin bead of silicone around the bottom lip of the sink and set it into the hole. Clean up any excess silicone or smooth a line. Depending on the design of the sink and the opening where it connects to the plumbing lines, you may need to caulk in any number of different places. Connective clips are often included with new sinks to help anchor the units into place, in addition to the sealing caulk.