John Dirks Jr Posted September 24, 2008 Report Share Posted September 24, 2008 I'm sure you've seen the carbon looking stains that can build up around electrical outlets. Is it carbon or what is it? Why does it happen? Link to comment Share on other sites More sharing options...
Jim Katen Posted September 24, 2008 Report Share Posted September 24, 2008 Originally posted by John Dirks Jr I'm sure you've seen the carbon looking stains that can build up around electrical outlets. Is it carbon or what is it? Why does it happen? It's the same dirt that causes ghosting. As air moves in or out of the openings around the receptacles, airborne dirt is deposited on the adjacent surfaces. - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
Chad Fabry Posted September 24, 2008 Report Share Posted September 24, 2008 I agree with Jim but I'll add that frequently used receptacles or poorly connected receptacles produce arcs. Arcing ionizes the atmosphere and causes the dust to precipitate out. Link to comment Share on other sites More sharing options...
hausdok Posted September 25, 2008 Report Share Posted September 25, 2008 When all of the windows and doors are closed an entry door will function like a bellows, pushing air into and out of wall cavities and the cold air that gets in around receptacles does cause ghosting. They make a foam gasket to fit behind receptacle coverplates that will prevent the dust from being sucked out of the wall every time the door is opened/closed and will can help to reduce ghosting. OT - OF!!! M. Link to comment Share on other sites More sharing options...
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