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  1. #1
    Join Date
    Apr 2019

    Default Common Algea or something else ?

    Southern California / HVAC secondary drain is above the window and was clogged and cleaned over a year ago, and is dry so I am ruling that out.

    What I have is fluorescent green stains and a build of up algae on the window frame, I have about a 63% moisture reading on the outside wall and 7% on the inside wall.

    Question, should if just be cleaned and monitored, or something more drastic.

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