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How to Fix a Blown Compression Joint on a Copper Pipe

Fixing a burst copper pipe connection can be an exasperating and potentially costly issue to handle, yet it is often something that you can resolve quickly with the right tools.

Compression joints are a form of fitting employed to join two pieces of copper pipe. The joint is formed by tightening down a compression ring, otherwise known as a ferrule, with the help of a nut. This keeps both parts connected securely and prevents any leakage or disruptions from occurring. However, there's always the possibility for these joints to become loose over time due to corrosion, vibration or normal deterioration - causing potential disasters for your plumbing system.


To repair a damaged compression joint on copper piping, start by shutting off the water supply to this section of the pipe. Then, use either a hacksaw or pipe cutter to precisely cut out and remove both sections above and below the blown piece. Finally, unscrew and discard any nuts or ferrule from the old joint before proceeding with your repairs.

To ensure the pipe is clean and ready for use, you must thoroughly scrub away dirt, debris or any corrosion with a wire brush or sandpaper. Then slide on your new ferrule followed by threading a brand-new nut onto the end of the pipe.

To finish, utilize a wrench to firmly fasten the nut onto the ferrule. After it is in place and tight, you can then turn on your water supply again while looking out for any leaks. If everything appears secure, congrats! You have fixed your joint.

If you continually encounter leaks from compression joints, it could be a pointer to more substantial plumbing troubles like high water pressure or substandard water quality. In such scenarios, it is best that you seek the help of an experienced plumber for proper assessment and resolution of the issue.

In summary, fixing a blown compression joint on a copper pipe is relatively simple, but it does require some basic plumbing knowledge and tools. With a little patience and care, you can fix the joint and get your water flowing again in no time.

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