A basin wrench is highly recommended, especially for beginners. Its unique design allows you to reach and loosen or tighten nuts in the cramped space under the sink that are difficult or impossible to access with a standard adjustable wrench. While an adjustable wrench will be used for some connections, the basin wrench prevents frustration and stripped nuts in tight spots.

You only need to shut off the individual hot and cold water supply lines located directly underneath your kitchen sink. Turn the small valves on these lines clockwise until they are fully closed. There's no need to turn off the main water supply to your entire house for this project, making it less disruptive.

While beginner-friendly, the biggest time extenders are often corroded or overtightened nuts under the sink, which can be stubborn to loosen. Working in a cramped, dark space can also slow you down, emphasizing the importance of good lighting like a headlamp. Having your tools and materials organized beforehand can help keep the project on track.

Immediately turn off the water supply under the sink again. Leaks commonly occur from connections that aren't fully tightened. Double-check all the nuts and fittings you worked on, ensuring they are snug but not overtightened. If the leak persists, you might need to disassemble the connection, inspect for any damaged or improperly seated washers or O-rings, and then reassemble carefully.