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  1. #1
    Join Date
    Jul 2004
    Posts
    322
    I've got your standard evaporator with copper tubes, aluminum fins, and galvanized frame. It's starting to rust, especially the screws in the frame which are galvanized. Would stainless screws help or make it worse? I suspect with three different metals in a wet environment rust is inevitable, but would appreciate any magic solutions.

  2. #2
    Join Date
    Apr 2005
    Location
    Tampa, Florida
    Posts
    1,634
    Usually the mechanical parts of the system fail long before the structural integrity of the unit fails.

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