Fixing A Bathroom Sink Drain Leak

Leaking bathroom sink drains are a common plumbing issue that can cause water damage and lead to mold and mildew growth. Fortunately, most bathroom sink drain leaks are easy to fix with a few simple tools and materials. Here's a step-by-step guide on how to fix a bathroom sink drain leak:

1. Determine the Type of Sink Drain

There are two main types of bathroom sink drains: compression drains and pop-up drains. Compression drains use a rubber washer to create a seal between the drain flange and the sink, while pop-up drains use a stopper that fits into a drain hole in the sink. Once you know the type of drain you have, you can gather the appropriate tools and materials.

2. Gather Tools and Materials

For compression drains, you will need a pair of pliers, a screwdriver, and a replacement washer. For pop-up drains, you will need a pair of pliers, a screwdriver, and a replacement stopper.

3. Shut Off the Water Supply

Before you begin working on the drain, turn off the water supply to the sink. This will prevent water from leaking out while you are working.

4. Remove the Drain Stopper

For pop-up drains, remove the drain stopper by pulling it straight up. For compression drains, remove the drain stopper by unscrewing the nut that holds it in place.

5. Remove the Drain Flange

For compression drains, remove the drain flange by unscrewing the nut that holds it in place. For pop-up drains, remove the drain flange by pulling it straight up.

6. Inspect the Washer or Stopper

Inspect the washer or stopper for signs of damage or wear. If the washer or stopper is damaged, it will need to be replaced.

7. Replace the Washer or Stopper

If the washer or stopper is damaged, replace it with a new one. For compression drains, insert the new washer into the drain flange and tighten the nut to secure it in place. For pop-up drains, insert the new stopper into the drain hole and push down to secure it in place.

8. Reinstall the Drain Flange

Reinstall the drain flange by screwing it into place. For compression drains, tighten the nut to secure the drain flange in place. For pop-up drains, push down on the drain flange to secure it in place.

9. Reinstall the Drain Stopper

Reinstall the drain stopper by inserting it into the drain hole and pushing down to secure it in place. For compression drains, tighten the nut to secure the drain stopper in place.

10. Turn On the Water Supply

Turn on the water supply to the sink and check for leaks. If there are no leaks, the repair is complete.

Tips:

If you are not comfortable working on plumbing, it is best to call a licensed plumber.
Be sure to use the correct tools and materials for the type of drain you have.
Tighten all nuts and screws securely, but do not overtighten.
If you are replacing a washer, be sure to use a washer that is the correct size and shape for your drain.