The Step-by-Step Guide to Replacing a Sink Trap

Whether you're dealing with a clog, a leak, or a worn-out part, replacing your sink trap is a straightforward project that can help prevent bigger plumbing issues. At Charlotte Plumbing, we know the importance of keeping your drains flowing and your home protected. Here's a step-by-step breakdown to help you replace a sink trap safely and correctly.

What Is a Sink Trap?

A sink trap, also known as a P-trap, is the curved pipe under your sink that holds a small amount of water to block sewer gases from entering your home. It's a key part of your plumbing system, and it can wear out or clog over time.

Signs You May Need to Replace Your Sink Trap

Common signs include frequent clogs, slow drainage, visible corrosion, or leaks under the sink. If you notice a foul odor or see water damage, it's time to take a closer look at the trap.

Tools and Materials You’ll Need

Before you begin, gather the following items:

• Adjustable wrench
• Bucket
• Replacement P-trap kit
• Plumber’s tape
• Gloves and towels

Step-by-Step Instructions

Step 1: Place a bucket under the trap to catch any water.
Step 2: Use the wrench to loosen and remove the slip nuts at both ends of the trap.
Step 3: Remove the old trap and clean the pipe threads.
Step 4: Dry-fit the new trap to check alignment and length. Trim if needed.
Step 5: Wrap plumber’s tape around the threads for a secure fit.
Step 6: Attach the new trap and hand-tighten the slip nuts. Then snug them with the wrench—do not over-tighten.
Step 7: Run water to check for leaks and proper flow.

When to Call a Professional

If your pipes are damaged, corroded, or if replacing the trap doesn’t solve your drainage issues, it’s time to bring in the pros. Charlotte Plumbing’s licensed experts can diagnose and repair your sink fast—with no upsells or hassle. We service homes and businesses throughout the Charlotte, NC area.

Need help now? Contact Charlotte Plumbing for fast, reliable sink repair and replacement.