How to Repair a Leaking Exhaust Flange

Written by jessica danson
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It is a nightmare when a pipe springs a leak and starts spraying. Don't panic when this occurs. If no one nearby can fix it or you want to save some money, you can always repair the leakage yourself. Repairing any type of leaking exhaust flange is easy, fun and can be a learning experience.

Skill level:

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Things you need

  • Pipe clamp
  • Hose
  • 2 large screw clamps
  • Knife
  • C-clamp
  • Epoxy putty
  • 2 empty soda cans

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  1. 1

    Turn off your main valve to prevent losing any gas or water from your home. Cut off the top and bottom of cans with the knife. Loosen the screws on clamps until they are open. Fix the clamps on the pipe and close again. Put a piece of the cans' metal over the opening, and wrap the metal around the pipe.

  2. 2

    Put the second can piece on the pipe such that the middle of this can is opposite to the first one. Insert the clamps, leaving 1 or 1/2 inch on the outer edges. Tighten the clamps as tight as possible. Start the exhaust and check for leakage.

  3. 3

    Mix some putty in epoxy and press it hard around the leaking exhaust flange. Make a fine layer of adhesive over the leakage. Check that the coverage is good and then let dry for a couple of hours.

Tips and warnings

  • It's also possible to fix the exhaust leakage with amalgamation tape. These types of tapes can be closed according to your requirement. Wrap the tape around the leakage carefully.
  • This remedy is not permanent and will last a week or so. It's best to consult a professional to repair the leakage for good.

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