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Topic: How to use a vaccuum cleaner to navigate 90-degree conduit
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glossosaurusPerson was signed in when posted  13
08-23-2003 09:47 PM ET (US)
This is the standard procedure for utility contractors - I worked construction for a summer "blowing lines" for ComEd in Chicago. A parachute tied to nylo cord is blown down the conduit using an air compressor (we were doing them in 4-inch diameter conduit, 2000 feet long) then the cable is tied to the cord at the other end and the cord is pulled back through with a winch.
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