DIY: How to Repair a Tub Overflow Drain Leak

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If you've taken a close look at your sink and bathtub, you've probably noticed secondary draining devices near the edges. These are overflow drains --- backup drains that help prevent your sink or tub from overflowing when you leave the water running too long. A tub's overflow drain is attached to a rear pipe that, like any other pipe, can leak from time to time. When it does leak, you'll likely end up with water all over your floor. How you handle the situation depends on the type of leak your dealing with.

Things You'll Need

  • Dry towel
  • Electrical tape
  • Wrench

How to Repair Small Leaks

  • Locate the leak in the overflow drain pipe. The pipe is located directly behind the drain. You may have to fill the tub up to pinpoint the crack or hole if it is too small to see with the naked eye.

  • Turn off the water to your home when you have located the leak.

  • Dry the pipe with a clean towel. Also make sure the pipe is free of dirt and debris.

  • Apply at least three layers of electrical tape over the small leak. Cover the leak at least two inches on both sides.

  • Turn the water back on.

Repair Leaks Caused by Loose Fittings

Tips & Warnings

  • Sometimes overflow drain pipes collect condensation and can drip. You can fix this problem by wrapping the pipes in insulation.
  • An overflow drain pipe with severe damage will need to be replaced.

References

  • Photo Credit Tim Klein/Digital Vision/Getty Images
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