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Old 11-03-2008, 11:53 AM   #1
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Leaky solder job-ARRRRG


I have soldered cooper pipes before without problems. Yesterday I soldered in a new gate valve with two connectors to the old pipes and the pipes into the valve. I used the bread in the pipe trick too. Today I noticed a slow dripping leak above the valve where the valve meets the pipe. I turned off the water and used the valve knob on the side to drain the pipe.

Can I just re-solder the leaky area or am I going to have to cut it all out and re-solder everything? Any tips would be appreciated. Thanks to all who respond.

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Old 11-03-2008, 12:47 PM   #2
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Leaky solder job-ARRRRG


I would dry it out and try adding more solder.

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Old 11-03-2008, 03:50 PM   #3
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Leaky solder job-ARRRRG


almost never works for me doing it that way but you have nothing to lose but some time. If the water prevented it from sealing the first time, most likely to do same second time, especially because you don't know if its still getting in there, but no harm, no foul, try heating it up and adding solder to it., Sometimes we just get lucky.
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Old 11-03-2008, 08:04 PM   #4
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Leaky solder job-ARRRRG


Do it right.

Heat it up and pull it apart. Clean it up with a wire brush and sand paper, reflux and re-solder it.

You probably overheated it and vaporized some of the solder. Reheating it and re-soldering it might work, then again it might not but won't show a leak for a while.
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Old 11-03-2008, 11:24 PM   #5
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Leaky solder job-ARRRRG


Quote:
Originally Posted by Marvin Gardens View Post
Do it right.

Heat it up and pull it apart. Clean it up with a wire brush and sand paper, reflux and re-solder it.

You probably overheated it and vaporized some of the solder. Reheating it and re-soldering it might work, then again it might not but won't show a leak for a while.
Absolutely. Adding more solder rarely works, especially long term.
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Old 11-04-2008, 05:48 AM   #6
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Leaky solder job-ARRRRG


I would have to agree. You should break it down and clean it up and re solider the joint. Drain all the water from the pipe. if your in the basement make sure you open and faucets on the first or second floor so the water will drain completely, or your just going to have a steady dribble. BOB.

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