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    cableguyrick's Avatar
    cableguyrick Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jan 15, 2011, 05:02 PM
    White residue
    The ductwork in my basement has white chalky crumbly residue on the outside. My home is 7 years old and the basement is unfinished. The white residue falls off on everything that we have in the basement. What is this and what is causing this? Also how can I fix it?


    Rick
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #2

    Jan 15, 2011, 06:57 PM
    If the system was ran during construction it may be sheet rock dust your seeing. The only way to get it out is clean the ducts. That's the #1 reason why hvac systems should not be ran during construction.
    cableguyrick's Avatar
    cableguyrick Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Jan 15, 2011, 10:17 PM
    Comment on T-Top's post
    This is on the outside... almost like corrosion or rust
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