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Thread: Green copper pipes

  1. #1
    DIY Member littlebrook's Avatar
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    Default Green copper pipes

    Hi,

    I was wondering whether I should worry about green patches appearing on my copper pipes, especially around the joints?

    Thanks

  2. #2
    Plumber Cass's Avatar
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    The green patches could be nothing or they may be pin holes developing.

  3. #3
    Plumber Cass's Avatar
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    Around the fittings probably nothing between fittings very likely pin holes developing.

  4. #4
    DIY Member littlebrook's Avatar
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    what causes pinholes?

  5. #5
    Retired Defense Industry Engineer jadnashua's Avatar
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    Defective pipe, agressive water, poor elecrical grounding, excessive water flow velocity, excessive use of flux, not cleaning off flux residue...and probably other things as well.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  6. #6
    DIY Member littlebrook's Avatar
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    probably bad electrical grounding in my case. When I moved into the house 18 months ago, the ground wire was loosely wrapped around the water meter. Don't know how long it was like that before I put a proper ground clamp on it.

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