In this video, we learn how to install a vanity and sink with Lowe's. A great way to give your bathroom a makeover is to give it a new vanity and sink. First, turn off the water from the water line, then take down the pipes from under the sink. Use a bucket to catch extra water that's falling out. Next, separate the top from the base and then remove the old vanity. Remove the old base unit from the bathroom and then install the new vanity. Measure out the area to make sure it will fit. Place your new sink into the base and then connect the pipes underneath. When finished, turn the water back on and make sure all your pipes are tight and everything is screwed in. Try out the sink to make sure the water is running then you're finished.