Step 2 · Disconnect the Old Sink and Faucet Plumbing

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

Using an adjustable wrench or basin wrench, carefully disconnect the water supply lines and drain plumbing from the old sink. Be prepared for some water spillage, even after turning off the valves. Have rags or a bucket ready.