How to repair a burst water pipe

Probably the number one plumbing emergency, a burst water pipe can be a real hassle if you don't know how to fix it. Here's a guide that can help you understand the basic steps involved.

Level of difficulty

Level 2: Intermediate

What you need

• Compression fitting
• Slip connector
• Water pipe
• Saw
• Wrench
• Cap nuts
• Compression tape
• Bucket

The steps to follow

1. If you suspect there's a leak in some pipe work, turn off the main water supply immediately. Open taps or drain cocks to drain water from the pipe. A drain cock can be located near the base of the water cylinder.
2. You can try to contain the leak by blocking the hole with your finger, while a second person places a bucket to catch the water.  Mop up any spilt water to prevent damage to surfaces.
3. Fit a straight compression fitting to repair the leak. Otherwise, use a slip connector.
4. Mark the punctured area on the pipe and cut it out with a saw. 
5. Clean the inside of the pipe ends with a brush.
6. Fit the compression fitting into the pipe ends and slide a slip connector in place.
7. Connect the other pipe end to the compression fitting. Tight the cap-nuts and olive with a wrench.
8. Turn the main water supply back on and check for leaks.
9. If the damage is a serious one, use two compression fittings or connectors. Cut the damaged section out and connect the new fittings to the pipes.
10. If the leak is from a fitting, try tightening the cap-nut with a wrench. You can also use compression tape over the cap-nut.

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• How to insulate pipes

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