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Pumping sound by moving cone
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<blockquote data-quote="Phased Out" data-source="post: 8500816" data-attributes="member: 669121"><p>I have no idea, but I might be able to help. Recently did ductwork at home. Get a punk (like you use to light fireworks or keep mosquitoes away). Light it. Put the sub on or push the sub by hand. Slowly move the punk around the areas where air might escape. As long as theres no other wind you'll be able to find the leak when the smoke is blown away by the escaping air. You might need a second set of hands, but this should work.</p></blockquote><p></p>
[QUOTE="Phased Out, post: 8500816, member: 669121"] I have no idea, but I might be able to help. Recently did ductwork at home. Get a punk (like you use to light fireworks or keep mosquitoes away). Light it. Put the sub on or push the sub by hand. Slowly move the punk around the areas where air might escape. As long as theres no other wind you'll be able to find the leak when the smoke is blown away by the escaping air. You might need a second set of hands, but this should work. [/QUOTE]
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Pumping sound by moving cone
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