Step 8 · Reconnect Plumbing

This is the step most people slow down on. Take it one move at a time — there’s no rush, and you can rewind the clip as many times as you need.

Now, reconnect all the plumbing components. Start by connecting the new faucet's hot and cold supply lines to the shutoff valves. Hand-tighten the nuts and then give them a quarter-turn with a basin wrench or adjustable wrench. Do not overtighten. Lift the new garbage disposal into place, align the tabs with the mounting ring, and use the disposal wrench to turn the ring and lock the unit in place. Reconnect the dishwasher drain line to the disposal's inlet port. Finally, reassemble the P-trap, connecting the sink strainer and disposal outlet to the drain pipe in the wall. You may need to trim pipes with a hacksaw for a perfect fit. Hand-tighten all the plastic slip nuts, then give them a slight snug with channel-lock pliers.