How to Fix a Leaking Pipe Under Sink: A Step-by-Step Guide

Discovering a leaking pipe under your sink can be frustrating, but with the right tools and knowledge, you can fix it yourself. This guide will walk you through the process of identifying and repairing a leaky pipe under your sink, saving you time and money on a plumber.Before you begin, gather the following tools and materials:

• Adjustable wrench
• Pipe wrench
• Plumber’s tape (Teflon tape)
• Bucket or towel
• Pipe cutter (if replacement is needed)
• Replacement pipes or fittings (if necessary)

Follow these steps to fix the leaking pipe under your sink:

1. Turn Off the Water Supply: Locate the shut-off valves under the sink and turn them clockwise to stop the water flow. If there are no individual shut-off valves, you may need to turn off the main water supply.
2. Identify the Source of the Leak: Dry the pipes with a towel and run the water briefly to pinpoint where the leak is coming from. Common leak locations include pipe joints, connections, or cracks in the pipe.
3. Tighten Loose Connections: Use an adjustable wrench to gently tighten any loose fittings. Be careful not to overtighten, as this can damage the pipes.
4. Replace Damaged Parts: If the leak persists, you may need to replace a section of the pipe or a faulty fitting. Use a pipe cutter to remove the damaged section and install a new one, securing it with plumber’s tape.
5. Test the Repair: Turn the water supply back on and check for leaks. If everything looks good, dry the area and monitor it for a few hours to ensure the leak is fully resolved.

Preventing future leaks is just as important as fixing them. Here are some tips to keep your pipes in good condition:

• Regularly inspect under your sink for signs of moisture or corrosion.
• Avoid using chemical drain cleaners, as they can damage pipes over time.
• Ensure pipes are properly insulated in colder climates to prevent freezing and cracking.

If you’re unsure about any step or the leak persists after your repair attempts, it’s best to call a professional plumber. Some leaks may indicate larger issues, such as water pressure problems or pipe corrosion, that require expert attention.By following this guide, you can confidently tackle a leaking pipe under your sink and maintain a dry, functional kitchen or bathroom. Remember, timely repairs can prevent more serious water damage and costly repairs down the line.